diff --git a/packages/bot/src/helpers.ts b/packages/bot/src/helpers.ts
index feec456ce..e5c8bbc5d 100644
--- a/packages/bot/src/helpers.ts
+++ b/packages/bot/src/helpers.ts
@@ -63,8 +63,8 @@ import type {
   GetInvite,
   GetMessagesOptions,
   GetReactions,
-  GetScheduledEventUsers,
   GetScheduledEvents,
+  GetScheduledEventUsers,
   GetUserGuilds,
   GetWebhookMessageOptions,
   InteractionCallbackData,
@@ -319,7 +319,7 @@ export function createBotHelpers(bot: Bot): BotHelpers {
       return bot.transformers.message(bot, snakelize(await bot.rest.getFollowupMessage(token, messageId)))
     },
     getGatewayBot: async () => {
-      return bot.transformers.gatewayBot(snakelize(await bot.rest.getGatewayBot()))
+      return bot.transformers.gatewayBot(bot, snakelize(await bot.rest.getGatewayBot()))
     },
     getGlobalApplicationCommand: async (commandId) => {
       return bot.transformers.applicationCommand(bot, snakelize(await bot.rest.getGlobalApplicationCommand(commandId)))
@@ -418,7 +418,7 @@ export function createBotHelpers(bot: Bot): BotHelpers {
       })
     },
     getSessionInfo: async () => {
-      return bot.transformers.gatewayBot(snakelize(await bot.rest.getSessionInfo()))
+      return bot.transformers.gatewayBot(bot, snakelize(await bot.rest.getSessionInfo()))
     },
     getStageInstance: async (channelId) => {
       return bot.transformers.stageInstance(bot, snakelize(await bot.rest.getStageInstance(channelId)))
diff --git a/packages/bot/src/transformers.ts b/packages/bot/src/transformers.ts
index af713a5e1..347824229 100644
--- a/packages/bot/src/transformers.ts
+++ b/packages/bot/src/transformers.ts
@@ -90,15 +90,20 @@ import { transformInviteStageInstance, type InviteStageInstance } from './transf
 import { transformSticker, transformStickerPack, type Sticker, type StickerPack } from './transformers/sticker.js'
 import { transformTeam, type Team } from './transformers/team.js'
 import { transformTemplate, type Template } from './transformers/template.js'
-import { transformThreadMember, type ThreadMember } from './transformers/threadMember.js'
+import {
+  transformThreadMember,
+  transformThreadMemberGuildCreate,
+  type ThreadMember,
+  type ThreadMemberGuildCreate,
+} from './transformers/threadMember.js'
 import { transformUser, type User } from './transformers/user.js'
-import { transformVoiceRegion, type VoiceRegions } from './transformers/voiceRegion.js'
+import { transformVoiceRegion, type VoiceRegion } from './transformers/voiceRegion.js'
 import { transformVoiceState, type VoiceState } from './transformers/voiceState.js'
 import { transformWebhook, type Webhook } from './transformers/webhook.js'
 import { transformWelcomeScreen, type WelcomeScreen } from './transformers/welcomeScreen.js'
 import { transformWidget, type GuildWidget } from './transformers/widget.js'
 import { transformWidgetSettings, type GuildWidgetSettings } from './transformers/widgetSettings.js'
-import type { BotInteractionResponse, DiscordComponent, DiscordInteractionResponse } from './typings.js'
+import type { BotInteractionResponse, DiscordComponent, DiscordInteractionResponse, DiscordThreadMemberGuildCreate } from './typings.js'
 
 export interface Transformers {
   customizers: {
@@ -108,6 +113,48 @@ export interface Transformers {
     user: (bot: Bot, payload: DiscordUser, user: User) => any
     member: (bot: Bot, payload: DiscordMember, member: Member) => any
     role: (bot: Bot, payload: DiscordRole, role: Role) => any
+    automodRule: (bot: Bot, payload: DiscordAutoModerationRule, automodRule: AutoModerationRule) => any
+    automodActionExecution: (bot: Bot, payload: DiscordAutoModerationActionExecution, automodActionExecution: AutoModerationActionExecution) => any
+    guild: (bot: Bot, payload: DiscordGuild, guild: Guild) => any
+    voiceState: (bot: Bot, payload: DiscordVoiceState, voiceState: VoiceState) => any
+    interactionDataOptions: (bot: Bot, payload: DiscordInteractionDataOption, interactionDataOptions: InteractionDataOption) => any
+    integration: (bot: Bot, payload: DiscordIntegrationCreateUpdate, integration: Integration) => any
+    invite: (bot: Bot, payload: DiscordInviteCreate | DiscordInviteMetadata, invite: Invite) => any
+    application: (bot: Bot, payload: DiscordApplication, application: Application) => any
+    team: (bot: Bot, payload: DiscordTeam, team: Team) => any
+    emoji: (bot: Bot, payload: DiscordEmoji, emoji: Emoji) => any
+    activity: (bot: Bot, payload: DiscordActivity, activity: Activity) => any
+    presence: (bot: Bot, payload: DiscordPresenceUpdate, presence: PresenceUpdate) => any
+    attachment: (bot: Bot, payload: DiscordAttachment, attachment: Attachment) => any
+    embed: (bot: Bot, payload: DiscordEmbed, embed: Embed) => any
+    component: (bot: Bot, payload: DiscordComponent, component: Component) => any
+    webhook: (bot: Bot, payload: DiscordWebhook, webhook: Webhook) => any
+    auditLogEntry: (bot: Bot, payload: DiscordAuditLogEntry, auditLogEntry: AuditLogEntry) => any
+    applicationCommand: (bot: Bot, payload: DiscordApplicationCommand, applicationCommand: ApplicationCommand) => any
+    applicationCommandOption: (bot: Bot, payload: DiscordApplicationCommandOption, applicationCommandOption: ApplicationCommandOption) => any
+    applicationCommandPermission: (
+      bot: Bot,
+      payload: DiscordGuildApplicationCommandPermissions,
+      applicationCommandPermission: ApplicationCommandPermission,
+    ) => any
+    scheduledEvent: (bot: Bot, payload: DiscordScheduledEvent, scheduledEvent: ScheduledEvent) => any
+    threadMember: (bot: Bot, payload: DiscordThreadMember, threadMember: ThreadMember) => any
+    threadMemberGuildCreate: (bot: Bot, payload: DiscordThreadMemberGuildCreate, threadMemberGuildCreate: ThreadMemberGuildCreate) => any
+    welcomeScreen: (bot: Bot, payload: DiscordWelcomeScreen, welcomeScreen: WelcomeScreen) => any
+    voiceRegion: (bot: Bot, payload: DiscordVoiceRegion, voiceRegion: VoiceRegion) => any
+    gatewayBot: (bot: Bot, payload: DiscordGetGatewayBot, getGatewayBot: GetGatewayBot) => any
+    widget: (bot: Bot, payload: DiscordGuildWidget, widget: GuildWidget) => any
+    widgetSettings: (bot: Bot, payload: DiscordGuildWidgetSettings, widgetSettings: GuildWidgetSettings) => any
+    stageInstance: (bot: Bot, payload: DiscordStageInstance, stageInstance: StageInstance) => any
+    inviteStageInstance: (bot: Bot, payload: DiscordInviteStageInstance, inviteStageInstance: InviteStageInstance) => any
+    sticker: (bot: Bot, payload: DiscordSticker, sticker: Sticker) => any
+    stickerPack: (bot: Bot, payload: DiscordStickerPack, stickerPack: StickerPack) => any
+    applicationCommandOptionChoice: (
+      bot: Bot,
+      payload: DiscordApplicationCommandOptionChoice,
+      applicationCommandOptionChoice: ApplicationCommandOptionChoice,
+    ) => any
+    template: (bot: Bot, payload: DiscordTemplate, template: Template) => any
   }
   desiredProperties: {
     attachment: {
@@ -412,7 +459,7 @@ export interface Transformers {
     attachment: (bot: Bot, payload: Attachment) => DiscordAttachment
   }
   snowflake: (snowflake: BigString) => bigint
-  gatewayBot: (payload: DiscordGetGatewayBot) => GetGatewayBot
+  gatewayBot: (bot: Bot, payload: DiscordGetGatewayBot) => GetGatewayBot
   automodRule: (bot: Bot, payload: DiscordAutoModerationRule) => AutoModerationRule
   automodActionExecution: (bot: Bot, payload: DiscordAutoModerationActionExecution) => AutoModerationActionExecution
   channel: (bot: Bot, payload: { channel: DiscordChannel } & { guildId?: BigString }) => Channel
@@ -441,8 +488,9 @@ export interface Transformers {
   applicationCommandPermission: (bot: Bot, payload: DiscordGuildApplicationCommandPermissions) => ApplicationCommandPermission
   scheduledEvent: (bot: Bot, payload: DiscordScheduledEvent) => ScheduledEvent
   threadMember: (bot: Bot, payload: DiscordThreadMember) => ThreadMember
+  threadMemberGuildCreate: (bot: Bot, payload: DiscordThreadMemberGuildCreate) => ThreadMemberGuildCreate
   welcomeScreen: (bot: Bot, payload: DiscordWelcomeScreen) => WelcomeScreen
-  voiceRegion: (bot: Bot, payload: DiscordVoiceRegion) => VoiceRegions
+  voiceRegion: (bot: Bot, payload: DiscordVoiceRegion) => VoiceRegion
   widget: (bot: Bot, payload: DiscordGuildWidget) => GuildWidget
   widgetSettings: (bot: Bot, payload: DiscordGuildWidgetSettings) => GuildWidgetSettings
   stageInstance: (bot: Bot, payload: DiscordStageInstance) => StageInstance
@@ -475,6 +523,108 @@ export function createTransformers(options: Partial<Transformers>): Transformers
       user(bot, payload, user) {
         return user
       },
+      activity(bot, payload, activity) {
+        return activity
+      },
+      application(bot, payload, application) {
+        return application
+      },
+      applicationCommand(bot, payload, applicationCommand) {
+        return applicationCommand
+      },
+      applicationCommandOption(bot, payload, applicationCommandOption) {
+        return applicationCommandOption
+      },
+      applicationCommandOptionChoice(bot, payload, applicationCommandOptionChoice) {
+        return applicationCommandOptionChoice
+      },
+      applicationCommandPermission(bot, payload, applicationCommandPermission) {
+        return applicationCommandPermission
+      },
+      attachment(bot, payload, attachment) {
+        return attachment
+      },
+      auditLogEntry(bot, payload, auditLogEntry) {
+        return auditLogEntry
+      },
+      automodActionExecution(bot, payload, automodActionExecution) {
+        return automodActionExecution
+      },
+      automodRule(bot, payload, automodRule) {
+        return automodRule
+      },
+      component(bot, payload, component) {
+        return component
+      },
+      embed(bot, payload, embed) {
+        return embed
+      },
+      emoji(bot, payload, emoji) {
+        return emoji
+      },
+      guild(bot, payload, guild) {
+        return guild
+      },
+      integration(bot, payload, integration) {
+        return integration
+      },
+      interactionDataOptions(bot, payload, interactionDataOptions) {
+        return interactionDataOptions
+      },
+      invite(bot, payload, invite) {
+        return invite
+      },
+      presence(bot, payload, presence) {
+        return presence
+      },
+      scheduledEvent(bot, payload, scheduledEvent) {
+        return scheduledEvent
+      },
+      stageInstance(bot, payload, stageInstance) {
+        return stageInstance
+      },
+      inviteStageInstance(bot, payload, inviteStageInstance) {
+        return inviteStageInstance
+      },
+      sticker(bot, payload, sticker) {
+        return sticker
+      },
+      stickerPack(bot, payload, stickerPack) {
+        return stickerPack
+      },
+      team(bot, payload, team) {
+        return team
+      },
+      template(bot, payload, template) {
+        return template
+      },
+      threadMember(bot, payload, threadMember) {
+        return threadMember
+      },
+      threadMemberGuildCreate(bot, payload, threadMemberGuildCreate) {
+        return threadMemberGuildCreate
+      },
+      voiceRegion(bot, payload, voiceRegion) {
+        return voiceRegion
+      },
+      voiceState(bot, payload, voiceState) {
+        return voiceState
+      },
+      gatewayBot(bot, payload, getGatewayBot) {
+        return getGatewayBot
+      },
+      webhook(bot, payload, webhook) {
+        return webhook
+      },
+      welcomeScreen(bot, payload, welcomeScreen) {
+        return welcomeScreen
+      },
+      widget(bot, payload, widget) {
+        return widget
+      },
+      widgetSettings(bot, payload, widgetSettings) {
+        return widgetSettings
+      },
     },
     desiredProperties: {
       attachment: {
@@ -808,6 +958,7 @@ export function createTransformers(options: Partial<Transformers>): Transformers
     applicationCommandPermission: options.applicationCommandPermission ?? transformApplicationCommandPermission,
     scheduledEvent: options.scheduledEvent ?? transformScheduledEvent,
     threadMember: options.threadMember ?? transformThreadMember,
+    threadMemberGuildCreate: options.threadMemberGuildCreate ?? transformThreadMemberGuildCreate,
     welcomeScreen: options.welcomeScreen ?? transformWelcomeScreen,
     voiceRegion: options.voiceRegion ?? transformVoiceRegion,
     widget: options.widget ?? transformWidget,
diff --git a/packages/bot/src/transformers/activity.ts b/packages/bot/src/transformers/activity.ts
index 0222c5a7e..ea7075f21 100644
--- a/packages/bot/src/transformers/activity.ts
+++ b/packages/bot/src/transformers/activity.ts
@@ -1,8 +1,6 @@
-import type { Bot, DiscordActivity } from '../index.js'
-import type { Optionalize } from '../optionalize.js'
+import type { ActivityTypes, Bot, DiscordActivity } from '../index.js'
 
-// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
-export function transformActivity(bot: Bot, payload: DiscordActivity) {
+export function transformActivity(bot: Bot, payload: DiscordActivity): Activity {
   const activity = {
     name: payload.name,
     type: payload.type,
@@ -33,9 +31,40 @@ export function transformActivity(bot: Bot, payload: DiscordActivity) {
     instance: payload.instance,
     flags: payload.flags,
     buttons: payload.buttons,
-  }
+  } as Activity
 
-  return activity as Optionalize<typeof activity>
+  return bot.transformers.customizers.activity(bot, payload, activity)
 }
 
-export interface Activity extends ReturnType<typeof transformActivity> {}
+export interface Activity {
+  join?: string
+  flags?: number
+  applicationId?: bigint
+  spectate?: string
+  url?: string
+  startedAt?: number
+  endedAt?: number
+  details?: string
+  state?: string
+  emoji?: {
+    id?: bigint
+    animated?: boolean
+    name: string
+  }
+  partyId?: string
+  partyCurrentSize?: number
+  partyMaxSize?: number
+  largeImage?: string
+  largeText?: string
+  smallImage?: string
+  smallText?: string
+  match?: string
+  instance?: boolean
+  buttons?: Array<{
+    url: string
+    label: string
+  }>
+  name: string
+  type: ActivityTypes
+  createdAt: number
+}
diff --git a/packages/bot/src/transformers/application.ts b/packages/bot/src/transformers/application.ts
index 5d492c3e0..e01655131 100644
--- a/packages/bot/src/transformers/application.ts
+++ b/packages/bot/src/transformers/application.ts
@@ -1,8 +1,6 @@
-import { iconHashToBigInt, type Bot, type DiscordApplication } from '../index.js'
-import type { Optionalize } from '../optionalize.js'
+import { iconHashToBigInt, type ApplicationFlags, type Bot, type DiscordApplication, type Team, type User } from '../index.js'
 
-// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
-export function transformApplication(bot: Bot, payload: DiscordApplication) {
+export function transformApplication(bot: Bot, payload: DiscordApplication): Application {
   const application = {
     name: payload.name,
     description: payload.description,
@@ -25,9 +23,27 @@ export function transformApplication(bot: Bot, payload: DiscordApplication) {
       : undefined,
     team: payload.team ? bot.transformers.team(bot, payload.team) : undefined,
     guildId: payload.guild_id ? bot.transformers.snowflake(payload.guild_id) : undefined,
-  }
+  } as Application
 
-  return application as Optionalize<typeof application>
+  return bot.transformers.customizers.application(bot, payload, application)
 }
 
-export interface Application extends ReturnType<typeof transformApplication> {}
+export interface Application {
+  flags?: ApplicationFlags
+  icon?: bigint
+  rpcOrigins?: string[]
+  termsOfServiceUrl?: string
+  privacyPolicyUrl?: string
+  primarySkuId?: string
+  slug?: string
+  coverImage?: bigint
+  owner?: User
+  team?: Team
+  guildId?: bigint
+  id: bigint
+  name: string
+  description: string
+  botPublic: boolean
+  botRequireCodeGrant: boolean
+  verifyKey: string
+}
diff --git a/packages/bot/src/transformers/applicationCommand.ts b/packages/bot/src/transformers/applicationCommand.ts
index bacdab76a..859edf940 100644
--- a/packages/bot/src/transformers/applicationCommand.ts
+++ b/packages/bot/src/transformers/applicationCommand.ts
@@ -1,9 +1,7 @@
-import type { DiscordApplicationCommand } from '@discordeno/types'
-import type { Bot } from '../index.js'
-import type { Optionalize } from '../optionalize.js'
+import type { ApplicationCommandTypes, DiscordApplicationCommand, Locales } from '@discordeno/types'
+import type { ApplicationCommandOption, Bot } from '../index.js'
 
-// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
-export function transformApplicationCommand(bot: Bot, payload: DiscordApplicationCommand) {
+export function transformApplicationCommand(bot: Bot, payload: DiscordApplicationCommand): ApplicationCommand {
   const applicationCommand = {
     id: bot.transformers.snowflake(payload.id),
     applicationId: bot.transformers.snowflake(payload.application_id),
@@ -18,9 +16,22 @@ export function transformApplicationCommand(bot: Bot, payload: DiscordApplicatio
     version: payload.version,
 
     options: payload.options?.map((option) => bot.transformers.applicationCommandOption(bot, option)),
-  }
+  } as ApplicationCommand
 
-  return applicationCommand as Optionalize<typeof applicationCommand>
+  return bot.transformers.customizers.applicationCommand(bot, payload, applicationCommand)
 }
 
-export interface ApplicationCommand extends ReturnType<typeof transformApplicationCommand> {}
+export interface ApplicationCommand {
+  options?: ApplicationCommandOption[]
+  description?: string
+  guildId?: bigint
+  nameLocalizations?: Record<Locales, string>
+  descriptionLocalizations?: Record<Locales, string>
+  defaultMemberPermissions?: bigint
+  type?: ApplicationCommandTypes
+  version?: string
+  id: bigint
+  name: string
+  applicationId: bigint
+  dmPermission: boolean
+}
diff --git a/packages/bot/src/transformers/applicationCommandOption.ts b/packages/bot/src/transformers/applicationCommandOption.ts
index 78c77eb40..4a22c0b37 100644
--- a/packages/bot/src/transformers/applicationCommandOption.ts
+++ b/packages/bot/src/transformers/applicationCommandOption.ts
@@ -3,7 +3,7 @@ import type { Bot } from '../index.js'
 import type { ApplicationCommandOptionChoice } from './applicationCommandOptionChoice.js'
 
 export function transformApplicationCommandOption(bot: Bot, payload: DiscordApplicationCommandOption): ApplicationCommandOption {
-  return {
+  const applicationCommandOption = {
     type: payload.type,
     name: payload.name,
     nameLocalizations: payload.name_localizations ?? undefined,
@@ -18,10 +18,10 @@ export function transformApplicationCommandOption(bot: Bot, payload: DiscordAppl
     minLength: payload.min_length,
     maxLength: payload.max_length,
     options: payload.options?.map((option) => bot.transformers.applicationCommandOption(bot, option)),
-  }
-}
+  } as ApplicationCommandOption
 
-// THIS TRANSFORMER HAS A CIRCULAR REFERENCE TO CALL ITSELF FOR OPTIONS SO AN AUTOMATED TYPE CAN NOT BE CREATED!
+  return bot.transformers.customizers.applicationCommandOption(bot, payload, applicationCommandOption)
+}
 
 export interface ApplicationCommandOption {
   /** Value of Application Command Option Type */
diff --git a/packages/bot/src/transformers/applicationCommandOptionChoice.ts b/packages/bot/src/transformers/applicationCommandOptionChoice.ts
index 9e0126db4..4f2f940e9 100644
--- a/packages/bot/src/transformers/applicationCommandOptionChoice.ts
+++ b/packages/bot/src/transformers/applicationCommandOptionChoice.ts
@@ -1,16 +1,18 @@
-import type { DiscordApplicationCommandOptionChoice } from '@discordeno/types'
+import type { DiscordApplicationCommandOptionChoice, Locales } from '@discordeno/types'
 import type { Bot } from '../index.js'
-import type { Optionalize } from '../optionalize.js'
 
-// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
-export function transformApplicationCommandOptionChoice(bot: Bot, payload: DiscordApplicationCommandOptionChoice) {
-  const applicationCommandChoice = {
+export function transformApplicationCommandOptionChoice(bot: Bot, payload: DiscordApplicationCommandOptionChoice): ApplicationCommandOptionChoice {
+  const applicationCommandOptionChoice = {
     name: payload.name,
     nameLocalizations: payload.name_localizations ?? undefined,
     value: payload.value,
-  }
+  } as ApplicationCommandOptionChoice
 
-  return applicationCommandChoice as Optionalize<typeof applicationCommandChoice>
+  return bot.transformers.customizers.applicationCommandOptionChoice(bot, payload, applicationCommandOptionChoice)
 }
 
-export interface ApplicationCommandOptionChoice extends ReturnType<typeof transformApplicationCommandOptionChoice> {}
+export interface ApplicationCommandOptionChoice {
+  nameLocalizations?: Record<Locales, string>
+  name: string
+  value: string | number
+}
diff --git a/packages/bot/src/transformers/applicationCommandPermission.ts b/packages/bot/src/transformers/applicationCommandPermission.ts
index 50d2cf505..19da84d81 100644
--- a/packages/bot/src/transformers/applicationCommandPermission.ts
+++ b/packages/bot/src/transformers/applicationCommandPermission.ts
@@ -1,9 +1,7 @@
-import type { DiscordGuildApplicationCommandPermissions } from '@discordeno/types'
+import type { ApplicationCommandPermissionTypes, DiscordGuildApplicationCommandPermissions } from '@discordeno/types'
 import type { Bot } from '../index.js'
-import type { Optionalize } from '../optionalize.js'
 
-// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
-export function transformApplicationCommandPermission(bot: Bot, payload: DiscordGuildApplicationCommandPermissions) {
+export function transformApplicationCommandPermission(bot: Bot, payload: DiscordGuildApplicationCommandPermissions): ApplicationCommandPermission {
   const applicationCommandPermission = {
     id: bot.transformers.snowflake(payload.id),
     applicationId: bot.transformers.snowflake(payload.application_id),
@@ -13,9 +11,18 @@ export function transformApplicationCommandPermission(bot: Bot, payload: Discord
       type: perm.type,
       permission: perm.permission,
     })),
-  }
+  } as ApplicationCommandPermission
 
-  return applicationCommandPermission as Optionalize<typeof applicationCommandPermission>
+  return bot.transformers.customizers.applicationCommandPermission(bot, payload, applicationCommandPermission)
 }
 
-export interface ApplicationCommandPermission extends ReturnType<typeof transformApplicationCommandPermission> {}
+export interface ApplicationCommandPermission {
+  id: bigint
+  guildId: bigint
+  applicationId: bigint
+  permissions: Array<{
+    id: bigint
+    type: ApplicationCommandPermissionTypes
+    permission: boolean
+  }>
+}
diff --git a/packages/bot/src/transformers/attachment.ts b/packages/bot/src/transformers/attachment.ts
index a8c7fb61f..18686b23c 100644
--- a/packages/bot/src/transformers/attachment.ts
+++ b/packages/bot/src/transformers/attachment.ts
@@ -1,8 +1,7 @@
 import type { DiscordAttachment } from '@discordeno/types'
 import type { Bot } from '../index.js'
 
-// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
-export function transformAttachment(bot: Bot, payload: DiscordAttachment) {
+export function transformAttachment(bot: Bot, payload: DiscordAttachment): Attachment {
   const props = bot.transformers.desiredProperties.attachment
   const attachment = {} as Attachment
 
@@ -17,7 +16,7 @@ export function transformAttachment(bot: Bot, payload: DiscordAttachment) {
   if (props.ephemeral && payload.ephemeral) attachment.ephemeral = payload.ephemeral
   if (props.description && payload.description) attachment.description = payload.description
 
-  return attachment
+  return bot.transformers.customizers.attachment(bot, payload, attachment)
 }
 
 export interface Attachment {
diff --git a/packages/bot/src/transformers/auditLogEntry.ts b/packages/bot/src/transformers/auditLogEntry.ts
index 496005ada..8bbd428e8 100644
--- a/packages/bot/src/transformers/auditLogEntry.ts
+++ b/packages/bot/src/transformers/auditLogEntry.ts
@@ -1,9 +1,7 @@
-import type { DiscordAuditLogEntry } from '@discordeno/types'
+import type { AuditLogEvents, DiscordAuditLogEntry, OverwriteTypes } from '@discordeno/types'
 import { iconHashToBigInt, type Bot } from '../index.js'
-import type { Optionalize } from '../optionalize.js'
 
-// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
-export function transformAuditLogEntry(bot: Bot, payload: DiscordAuditLogEntry) {
+export function transformAuditLogEntry(bot: Bot, payload: DiscordAuditLogEntry): AuditLogEntry {
   const auditLogEntry = {
     id: bot.transformers.snowflake(payload.id),
     changes: payload.changes?.map((change) => {
@@ -133,9 +131,126 @@ export function transformAuditLogEntry(bot: Bot, payload: DiscordAuditLogEntry)
         }
       : undefined,
     reason: payload.reason,
-  }
+  } as AuditLogEntry
 
-  return auditLogEntry as Optionalize<typeof auditLogEntry>
+  return bot.transformers.customizers.auditLogEntry(bot, payload, auditLogEntry)
 }
 
-export interface AuditLogEntry extends ReturnType<typeof transformAuditLogEntry> {}
+export interface AuditLogEntry {
+  id: bigint
+  userId?: bigint
+  reason?: string
+  changes?: Array<{
+    new?:
+      | string
+      | number
+      | bigint
+      | boolean
+      | Array<{
+          allow?: string
+          deny?: string
+          id: string
+          type: OverwriteTypes
+        }>
+      | Array<{
+          id?: bigint
+          name?: string
+        }>
+    old?:
+      | string
+      | number
+      | bigint
+      | boolean
+      | Array<{
+          allow?: string
+          deny?: string
+          id: string
+          type: OverwriteTypes
+        }>
+      | Array<{
+          id?: bigint
+          name?: string
+        }>
+    key:
+      | 'id'
+      | 'name'
+      | 'description'
+      | 'type'
+      | 'permissions'
+      | 'locked'
+      | 'invitable'
+      | 'nsfw'
+      | 'archived'
+      | 'position'
+      | 'topic'
+      | 'bitrate'
+      | 'default_auto_archive_duration'
+      | 'auto_archive_duration'
+      | 'allow'
+      | 'deny'
+      | 'channel_id'
+      | 'deaf'
+      | 'mute'
+      | 'status'
+      | 'nick'
+      | 'communication_disabled_until'
+      | 'color'
+      | 'permission_overwrites'
+      | 'user_limit'
+      | 'rate_limit_per_user'
+      | 'owner_id'
+      | 'application_id'
+      | 'hoist'
+      | 'mentionable'
+      | 'location'
+      | 'verification_level'
+      | 'default_message_notifications'
+      | 'explicit_content_filter'
+      | 'preferred_locale'
+      | 'afk_timeout'
+      | 'afk_channel_id'
+      | 'system_channel_id'
+      | 'widget_enabled'
+      | 'mfa_level'
+      | 'vanity_url_code'
+      | 'icon_hash'
+      | 'widget_channel_id'
+      | 'rules_channel_id'
+      | 'public_updates_channel_id'
+      | 'code'
+      | 'region'
+      | 'privacy_level'
+      | 'entity_type'
+      | 'enable_emoticons'
+      | 'expire_behavior'
+      | 'expire_grace_period'
+      | 'uses'
+      | 'max_uses'
+      | 'max_age'
+      | 'temporary'
+      | 'discovery_splash_hash'
+      | 'banner_hash'
+      | 'image_hash'
+      | 'splash_hash'
+      | 'inviter_id'
+      | 'avatar_hash'
+      | 'command_id'
+      | 'prune_delete_days'
+      | '$add'
+      | '$remove'
+  }>
+  targetId?: bigint
+  actionType: AuditLogEvents
+  options?: {
+    id?: bigint
+    channelId?: bigint
+    messageId?: bigint
+    type: number
+    count: number
+    deleteMemberDays: number
+    membersRemoved: number
+    roleName: string
+    autoModerationRuleName: string
+    autoModerationRuleTriggerType: string
+  }
+}
diff --git a/packages/bot/src/transformers/automodActionExecution.ts b/packages/bot/src/transformers/automodActionExecution.ts
index 66c5e5b8d..dbd96ecea 100644
--- a/packages/bot/src/transformers/automodActionExecution.ts
+++ b/packages/bot/src/transformers/automodActionExecution.ts
@@ -1,9 +1,7 @@
-import type { DiscordAutoModerationActionExecution } from '@discordeno/types'
+import type { AutoModerationActionType, AutoModerationTriggerTypes, DiscordAutoModerationActionExecution } from '@discordeno/types'
 import type { Bot } from '../index.js'
-import type { Optionalize } from '../optionalize.js'
 
-// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
-export function transformAutoModerationActionExecution(bot: Bot, payload: DiscordAutoModerationActionExecution) {
+export function transformAutoModerationActionExecution(bot: Bot, payload: DiscordAutoModerationActionExecution): AutoModerationActionExecution {
   const rule = {
     content: payload.content,
     ruleTriggerType: payload.rule_trigger_type,
@@ -23,9 +21,28 @@ export function transformAutoModerationActionExecution(bot: Bot, payload: Discor
         channelId: payload.action.metadata.channel_id ? bot.transformers.snowflake(payload.action.metadata.channel_id) : undefined,
       },
     },
-  }
+  } as AutoModerationActionExecution
 
-  return rule as Optionalize<typeof rule>
+  return bot.transformers.customizers.automodActionExecution(bot, payload, rule)
 }
 
-export interface AutoModerationActionExecution extends ReturnType<typeof transformAutoModerationActionExecution> {}
+export interface AutoModerationActionExecution {
+  channelId?: bigint
+  messageId?: bigint
+  alertSystemMessageId?: bigint
+  guildId: bigint
+  userId: bigint
+  content: string
+  action: {
+    type: AutoModerationActionType
+    metadata: {
+      customMessage?: string
+      durationSeconds?: number
+      channelId?: bigint
+    }
+  }
+  ruleTriggerType: AutoModerationTriggerTypes
+  ruleId: bigint
+  matchedKeyword: string
+  matchedContent: string
+}
diff --git a/packages/bot/src/transformers/automodRule.ts b/packages/bot/src/transformers/automodRule.ts
index 807f39103..40b8ffdba 100644
--- a/packages/bot/src/transformers/automodRule.ts
+++ b/packages/bot/src/transformers/automodRule.ts
@@ -1,9 +1,13 @@
-import type { DiscordAutoModerationRule } from '@discordeno/types'
+import type {
+  AutoModerationActionType,
+  AutoModerationEventTypes,
+  AutoModerationTriggerTypes,
+  DiscordAutoModerationRule,
+  DiscordAutoModerationRuleTriggerMetadataPresets,
+} from '@discordeno/types'
 import type { Bot } from '../index.js'
-import type { Optionalize } from '../optionalize.js'
 
-// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
-export function transformAutoModerationRule(bot: Bot, payload: DiscordAutoModerationRule) {
+export function transformAutoModerationRule(bot: Bot, payload: DiscordAutoModerationRule): AutoModerationRule {
   const rule = {
     name: payload.name,
     eventType: payload.event_type,
@@ -33,9 +37,35 @@ export function transformAutoModerationRule(bot: Bot, payload: DiscordAutoModera
           }
         : undefined,
     })),
-  }
+  } as AutoModerationRule
 
-  return rule as Optionalize<typeof rule>
+  return bot.transformers.customizers.automodRule(bot, payload, rule)
 }
 
-export interface AutoModerationRule extends ReturnType<typeof transformAutoModerationRule> {}
+export interface AutoModerationRule {
+  triggerMetadata?: {
+    keywordFilter?: string[]
+    presets?: DiscordAutoModerationRuleTriggerMetadataPresets[]
+    allowList?: string[]
+    mentionTotalLimit?: number
+    regexPatterns: string[]
+  }
+
+  id: bigint
+  name: string
+  guildId: bigint
+  eventType: AutoModerationEventTypes
+  triggerType: AutoModerationTriggerTypes
+  enabled: boolean
+  creatorId: bigint
+  exemptRoles: bigint[]
+  exemptChannels: bigint[]
+  actions: Array<{
+    type: AutoModerationActionType
+    metadata?: {
+      channelId?: bigint
+      customMessage?: string
+      durationSeconds?: number
+    }
+  }>
+}
diff --git a/packages/bot/src/transformers/channel.ts b/packages/bot/src/transformers/channel.ts
index dd18b45c5..b580765bf 100644
--- a/packages/bot/src/transformers/channel.ts
+++ b/packages/bot/src/transformers/channel.ts
@@ -1,7 +1,7 @@
 import type { BigString, ChannelTypes, DiscordChannel, DiscordThreadMember, OverwriteReadable, VideoQualityModes } from '@discordeno/types'
 import { calculatePermissions, type Bot } from '../index.js'
-import { Permissions } from './toggles/Permissions.js'
 import { ChannelToggles } from './toggles/channel.js'
+import { Permissions } from './toggles/Permissions.js'
 
 const Mask = (1n << 64n) - 1n
 
@@ -67,7 +67,8 @@ export function transformChannel(bot: Bot, payload: { channel: DiscordChannel }
   channel.toggles = new ChannelToggles(payload.channel)
 
   if (payload.channel.id && props.id) channel.id = bot.transformers.snowflake(payload.channel.id)
-  if ((payload.guildId ?? payload.channel.guild_id) && props.guildId) channel.guildId = payload.guildId ?? bot.transformers.snowflake(payload.channel.guild_id!)
+  if ((payload.guildId ?? payload.channel.guild_id) && props.guildId)
+    channel.guildId = payload.guildId ?? bot.transformers.snowflake(payload.channel.guild_id!)
   if (props.type) channel.type = payload.channel.type
   if (props.position) channel.position = payload.channel.position
   if (payload.channel.name && props.name) channel.name = payload.channel.name
@@ -98,9 +99,9 @@ export function transformChannel(bot: Bot, payload: { channel: DiscordChannel }
   if (payload.channel.permission_overwrites && props.permissionOverwrites) {
     channel.internalOverwrites = payload.channel.permission_overwrites.map((o) => packOverwrites(o.allow ?? '0', o.deny ?? '0', o.id, o.type))
   }
-  if (props.parentId && payload.channel.parent_id) channel.parentId = bot.transformers.snowflake(payload.channel.parent_id);
+  if (props.parentId && payload.channel.parent_id) channel.parentId = bot.transformers.snowflake(payload.channel.parent_id)
 
-  return bot.transformers.customizers.channel(bot, payload.channel, channel);
+  return bot.transformers.customizers.channel(bot, payload.channel, channel)
 }
 
 export interface BaseChannel {
diff --git a/packages/bot/src/transformers/component.ts b/packages/bot/src/transformers/component.ts
index 08f71d8b4..0b9bfa1a0 100644
--- a/packages/bot/src/transformers/component.ts
+++ b/packages/bot/src/transformers/component.ts
@@ -3,7 +3,7 @@ import type { Bot } from '../index.js'
 import type { DiscordComponent } from '../typings.js'
 
 export function transformComponent(bot: Bot, payload: DiscordComponent): Component {
-  return {
+  const component = {
     type: payload.type,
     customId: payload.custom_id,
     disabled: payload.disabled,
@@ -39,9 +39,9 @@ export function transformComponent(bot: Bot, payload: DiscordComponent): Compone
     value: payload.value,
     components: payload.components?.map((component) => bot.transformers.component(bot, component)),
   }
-}
 
-// THIS TRANSFORMER HAS A CIRCULAR REFERENCE TO CALL ITSELF FOR COMPONENTS SO AN AUTOMATED TYPE CAN NOT BE CREATED!
+  return bot.transformers.customizers.component(bot, payload, component)
+}
 
 export interface Component {
   /** component type */
diff --git a/packages/bot/src/transformers/embed.ts b/packages/bot/src/transformers/embed.ts
index 2375225b6..7850e78d8 100644
--- a/packages/bot/src/transformers/embed.ts
+++ b/packages/bot/src/transformers/embed.ts
@@ -1,9 +1,7 @@
-import type { DiscordEmbed } from '@discordeno/types'
+import type { DiscordEmbed, EmbedTypes } from '@discordeno/types'
 import type { Bot } from '../index.js'
-import type { Optionalize } from '../optionalize.js'
 
-// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
-export function transformEmbed(bot: Bot, payload: DiscordEmbed) {
+export function transformEmbed(bot: Bot, payload: DiscordEmbed): Embed {
   const embed = {
     title: payload.title,
     type: payload.type,
@@ -52,9 +50,54 @@ export function transformEmbed(bot: Bot, payload: DiscordEmbed) {
         }
       : undefined,
     fields: payload.fields,
-  }
+  } as Embed
 
-  return embed as Optionalize<typeof embed>
+  return bot.transformers.customizers.embed(bot, payload, embed)
 }
 
-export interface Embed extends ReturnType<typeof transformEmbed> {}
+export interface Embed {
+  description?: string
+  type?: EmbedTypes
+  url?: string
+  image?: {
+    proxyUrl?: string
+    height?: number
+    width?: number
+    url: string
+  }
+  video?: {
+    url?: string
+    proxyUrl?: string
+    height?: number
+    width?: number
+  }
+  title?: string
+  timestamp?: number
+  color?: number
+  footer?: {
+    iconUrl?: string
+    proxyIconUrl?: string
+    text: string
+  }
+  thumbnail?: {
+    proxyUrl?: string
+    height?: number
+    width?: number
+    url: string
+  }
+  provider?: {
+    name?: string
+    url?: string
+  }
+  author?: {
+    url?: string
+    iconUrl?: string
+    proxyIconUrl?: string
+    name: string
+  }
+  fields?: Array<{
+    inline?: boolean
+    name: string
+    value: string
+  }>
+}
diff --git a/packages/bot/src/transformers/emoji.ts b/packages/bot/src/transformers/emoji.ts
index 0a842e9a5..8ab93349e 100644
--- a/packages/bot/src/transformers/emoji.ts
+++ b/packages/bot/src/transformers/emoji.ts
@@ -2,8 +2,7 @@ import type { DiscordEmoji } from '@discordeno/types'
 import type { Bot, User } from '../index.js'
 import { EmojiToggles } from './toggles/emoji.js'
 
-// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
-export function transformEmoji(bot: Bot, payload: DiscordEmoji) {
+export function transformEmoji(bot: Bot, payload: DiscordEmoji): Emoji {
   const props = bot.transformers.desiredProperties.emoji
   const emoji = {} as Emoji
 
@@ -14,7 +13,7 @@ export function transformEmoji(bot: Bot, payload: DiscordEmoji) {
 
   emoji.toggles = new EmojiToggles(payload)
 
-  return emoji
+  return bot.transformers.customizers.emoji(bot, payload, emoji)
 }
 
 export interface Emoji {
diff --git a/packages/bot/src/transformers/gatewayBot.ts b/packages/bot/src/transformers/gatewayBot.ts
index 7145e208e..2965f1bb8 100644
--- a/packages/bot/src/transformers/gatewayBot.ts
+++ b/packages/bot/src/transformers/gatewayBot.ts
@@ -1,8 +1,7 @@
 import type { DiscordGetGatewayBot } from '@discordeno/types'
-import type { Optionalize } from '../optionalize.js'
+import type { Bot } from '../index.js'
 
-// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
-export function transformGatewayBot(payload: DiscordGetGatewayBot) {
+export function transformGatewayBot(bot: Bot, payload: DiscordGetGatewayBot): GetGatewayBot {
   const gatewayBot = {
     url: payload.url,
     shards: payload.shards,
@@ -12,9 +11,18 @@ export function transformGatewayBot(payload: DiscordGetGatewayBot) {
       resetAfter: payload.session_start_limit.reset_after,
       maxConcurrency: payload.session_start_limit.max_concurrency,
     },
-  }
+  } as GetGatewayBot
 
-  return gatewayBot as Optionalize<typeof gatewayBot>
+  return bot.transformers.customizers.gatewayBot(bot, payload, gatewayBot)
 }
 
-export interface GetGatewayBot extends ReturnType<typeof transformGatewayBot> {}
+export interface GetGatewayBot {
+  url: string
+  shards: number
+  sessionStartLimit: {
+    total: number
+    remaining: number
+    resetAfter: number
+    maxConcurrency: number
+  }
+}
diff --git a/packages/bot/src/transformers/guild.ts b/packages/bot/src/transformers/guild.ts
index e82531391..451392063 100644
--- a/packages/bot/src/transformers/guild.ts
+++ b/packages/bot/src/transformers/guild.ts
@@ -28,8 +28,7 @@ const baseGuild = {
   },
 } as Guild
 
-// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
-export function transformGuild(bot: Bot, payload: { guild: DiscordGuild } & { shardId: number }) {
+export function transformGuild(bot: Bot, payload: { guild: DiscordGuild } & { shardId: number }): Guild {
   const guildId = bot.transformers.snowflake(payload.guild.id)
   const props = bot.transformers.desiredProperties.guild
   const guild: Guild = Object.create(baseGuild)
@@ -146,7 +145,7 @@ export function transformGuild(bot: Bot, payload: { guild: DiscordGuild } & { sh
   if (props.presences && payload.guild.presences)
     guild.presences = payload.guild.presences?.map((presence) => bot.transformers.presence(bot, presence as DiscordPresenceUpdate))
 
-  return guild
+  return bot.transformers.customizers.guild(bot, payload.guild, guild)
 }
 
 export interface Guild {
@@ -241,7 +240,7 @@ export interface Guild {
   /** All active threads in the guild that the current user has permission to view */
   threads: Collection<bigint, Channel>
   /** Presences of the members in the guild, will only include non-offline members if the size is greater than large threshold */
-  presences?: Array<Partial<PresenceUpdate>>
+  presences?: PresenceUpdate[]
   /** Banner hash */
   banner?: bigint
   /** The preferred locale of a Community guild; used in server discovery and notices from Discord; defaults to "en-US" */
diff --git a/packages/bot/src/transformers/integration.ts b/packages/bot/src/transformers/integration.ts
index fb0abee5f..8ccba69c9 100644
--- a/packages/bot/src/transformers/integration.ts
+++ b/packages/bot/src/transformers/integration.ts
@@ -1,9 +1,7 @@
-import type { DiscordIntegrationCreateUpdate } from '@discordeno/types'
-import { iconHashToBigInt, type Bot } from '../index.js'
-import type { Optionalize } from '../optionalize.js'
+import type { DiscordIntegrationCreateUpdate, IntegrationExpireBehaviors, OAuth2Scope } from '@discordeno/types'
+import { iconHashToBigInt, type Bot, type User } from '../index.js'
 
-// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
-export function transformIntegration(bot: Bot, payload: DiscordIntegrationCreateUpdate) {
+export function transformIntegration(bot: Bot, payload: DiscordIntegrationCreateUpdate): Integration {
   const integration = {
     guildId: bot.transformers.snowflake(payload.guild_id),
     id: bot.transformers.snowflake(payload.id),
@@ -33,9 +31,36 @@ export function transformIntegration(bot: Bot, payload: DiscordIntegrationCreate
         }
       : undefined,
     scopes: payload.scopes,
-  }
+  } as Integration
 
-  return integration as Optionalize<typeof integration>
+  return bot.transformers.customizers.integration(bot, payload, integration)
 }
 
-export interface Integration extends ReturnType<typeof transformIntegration> {}
+export interface Integration {
+  user?: User
+  enabled?: boolean
+  syncing?: boolean
+  roleId?: bigint
+  enableEmoticons?: boolean
+  expireBehavior?: IntegrationExpireBehaviors
+  expireGracePeriod?: number
+  syncedAt?: number
+  subscriberCount?: number
+  revoked?: boolean
+  application?: {
+    bot?: User
+    icon?: bigint
+    id: bigint
+    name: string
+    description: string
+  }
+  id: bigint
+  name: string
+  guildId: bigint
+  type: 'twitch' | 'youtube' | 'discord'
+  account: {
+    id: bigint
+    name: string
+  }
+  scopes: OAuth2Scope[]
+}
diff --git a/packages/bot/src/transformers/invite.ts b/packages/bot/src/transformers/invite.ts
index 6ebb916aa..8ddccdc7d 100644
--- a/packages/bot/src/transformers/invite.ts
+++ b/packages/bot/src/transformers/invite.ts
@@ -2,8 +2,7 @@ import type { DiscordApplication, DiscordInviteCreate, DiscordInviteMetadata } f
 import { isInviteWithMetadata, type Application, type Bot, type ScheduledEvent, type User } from '../index.js'
 import type { InviteStageInstance } from './stageInviteInstance.js'
 
-// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
-export function transformInvite(bot: Bot, payload: DiscordInviteCreate | DiscordInviteMetadata) {
+export function transformInvite(bot: Bot, payload: DiscordInviteCreate | DiscordInviteMetadata): Invite {
   const props = bot.transformers.desiredProperties.invite
   const invite = {} as Invite
   const hasMetadata = isInviteWithMetadata(payload)
@@ -44,7 +43,7 @@ export function transformInvite(bot: Bot, payload: DiscordInviteCreate | Discord
     if (props.guildId && payload.guild_id) invite.guildId = bot.transformers.snowflake(payload.guild_id)
   }
 
-  return invite
+  return bot.transformers.customizers.invite(bot, payload, invite)
 }
 
 export interface Invite {
diff --git a/packages/bot/src/transformers/presence.ts b/packages/bot/src/transformers/presence.ts
index bd14bfad4..91ce686b8 100644
--- a/packages/bot/src/transformers/presence.ts
+++ b/packages/bot/src/transformers/presence.ts
@@ -1,9 +1,7 @@
 import { PresenceStatus, type DiscordPresenceUpdate } from '@discordeno/types'
-import type { Bot } from '../index.js'
-import type { Optionalize } from '../optionalize.js'
+import type { Activity, Bot, User } from '../index.js'
 
-// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
-export function transformPresence(bot: Bot, payload: DiscordPresenceUpdate) {
+export function transformPresence(bot: Bot, payload: DiscordPresenceUpdate): PresenceUpdate {
   const presence = {
     user: bot.transformers.user(bot, payload.user),
     guildId: bot.transformers.snowflake(payload.guild_id),
@@ -12,9 +10,17 @@ export function transformPresence(bot: Bot, payload: DiscordPresenceUpdate) {
     desktop: payload.client_status.desktop,
     mobile: payload.client_status.mobile,
     web: payload.client_status.web,
-  }
+  } as PresenceUpdate
 
-  return presence as Optionalize<typeof presence>
+  return bot.transformers.customizers.presence(bot, payload, presence)
 }
 
-export interface PresenceUpdate extends ReturnType<typeof transformPresence> {}
+export interface PresenceUpdate {
+  desktop?: string
+  mobile?: string
+  web?: string
+  user: User
+  guildId: bigint
+  status: PresenceStatus
+  activities: Activity[]
+}
diff --git a/packages/bot/src/transformers/scheduledEvent.ts b/packages/bot/src/transformers/scheduledEvent.ts
index 9e2d2a7c2..3a49db431 100644
--- a/packages/bot/src/transformers/scheduledEvent.ts
+++ b/packages/bot/src/transformers/scheduledEvent.ts
@@ -7,8 +7,7 @@ import type {
 } from '@discordeno/types'
 import { iconHashToBigInt, type Bot, type User } from '../index.js'
 
-// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
-export function transformScheduledEvent(bot: Bot, payload: DiscordScheduledEvent) {
+export function transformScheduledEvent(bot: Bot, payload: DiscordScheduledEvent): ScheduledEvent {
   const props = bot.transformers.desiredProperties.scheduledEvent
   const scheduledEvent = {} as ScheduledEvent
 
@@ -29,7 +28,7 @@ export function transformScheduledEvent(bot: Bot, payload: DiscordScheduledEvent
   if (props.location && payload.entity_metadata?.location) scheduledEvent.location = payload.entity_metadata.location
   if (props.image && payload.image) scheduledEvent.image = iconHashToBigInt(payload.image)
 
-  return scheduledEvent
+  return bot.transformers.customizers.scheduledEvent(bot, payload, scheduledEvent)
 }
 
 export interface ScheduledEvent {
diff --git a/packages/bot/src/transformers/stageInstance.ts b/packages/bot/src/transformers/stageInstance.ts
index 7824f97e0..cdcd41f0a 100644
--- a/packages/bot/src/transformers/stageInstance.ts
+++ b/packages/bot/src/transformers/stageInstance.ts
@@ -1,8 +1,7 @@
 import type { DiscordStageInstance } from '@discordeno/types'
 import type { Bot } from '../index.js'
 
-// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
-export function transformStageInstance(bot: Bot, payload: DiscordStageInstance) {
+export function transformStageInstance(bot: Bot, payload: DiscordStageInstance): StageInstance {
   const props = bot.transformers.desiredProperties.stageInstance
   const stageInstance = {} as StageInstance
 
@@ -13,7 +12,7 @@ export function transformStageInstance(bot: Bot, payload: DiscordStageInstance)
   if (props.guildScheduledEventId && payload.guild_scheduled_event_id)
     stageInstance.guildScheduledEventId = bot.transformers.snowflake(payload.guild_scheduled_event_id)
 
-  return stageInstance
+  return bot.transformers.customizers.stageInstance(bot, payload, stageInstance)
 }
 
 export interface StageInstance {
diff --git a/packages/bot/src/transformers/stageInviteInstance.ts b/packages/bot/src/transformers/stageInviteInstance.ts
index 262032c25..2c5b0a092 100644
--- a/packages/bot/src/transformers/stageInviteInstance.ts
+++ b/packages/bot/src/transformers/stageInviteInstance.ts
@@ -1,8 +1,7 @@
 import type { BigString, DiscordInviteStageInstance, DiscordMember } from '@discordeno/types'
 import type { Bot, Member } from '../index.js'
 
-// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
-export function transformInviteStageInstance(bot: Bot, payload: DiscordInviteStageInstance & { guildId: BigString }) {
+export function transformInviteStageInstance(bot: Bot, payload: DiscordInviteStageInstance & { guildId: BigString }): InviteStageInstance {
   const props = bot.transformers.desiredProperties.inviteStageInstance
   const inviteStageInstance = {} as InviteStageInstance
 
@@ -14,7 +13,8 @@ export function transformInviteStageInstance(bot: Bot, payload: DiscordInviteSta
   if (props.participantCount && payload.participant_count) inviteStageInstance.participantCount = payload.participant_count
   if (props.speakerCount && payload.speaker_count) inviteStageInstance.participantCount = payload.participant_count
   if (props.topic && payload.topic) inviteStageInstance.topic = payload.topic
-  return inviteStageInstance
+
+  return bot.transformers.customizers.inviteStageInstance(bot, payload, inviteStageInstance)
 }
 
 export interface InviteStageInstance {
diff --git a/packages/bot/src/transformers/sticker.ts b/packages/bot/src/transformers/sticker.ts
index 98edfaa1d..26c498ac7 100644
--- a/packages/bot/src/transformers/sticker.ts
+++ b/packages/bot/src/transformers/sticker.ts
@@ -1,9 +1,7 @@
 import type { DiscordSticker, DiscordStickerPack, StickerFormatTypes, StickerTypes } from '@discordeno/types'
 import type { Bot, User } from '../index.js'
-import type { Optionalize } from '../optionalize.js'
 
-// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
-export function transformSticker(bot: Bot, payload: DiscordSticker) {
+export function transformSticker(bot: Bot, payload: DiscordSticker): Sticker {
   const props = bot.transformers.desiredProperties.sticker
   const sticker = {} as Sticker
 
@@ -19,11 +17,10 @@ export function transformSticker(bot: Bot, payload: DiscordSticker) {
   if (props.user && payload.user) sticker.user = bot.transformers.user(bot, payload.user)
   if (props.sortValue && payload.sort_value) sticker.sortValue = payload.sort_value
 
-  return sticker
+  return bot.transformers.customizers.sticker(bot, payload, sticker)
 }
 
-// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
-export function transformStickerPack(bot: Bot, payload: DiscordStickerPack) {
+export function transformStickerPack(bot: Bot, payload: DiscordStickerPack): StickerPack {
   const pack = {
     id: bot.transformers.snowflake(payload.id),
     stickers: payload.stickers.map((sticker) => bot.transformers.sticker(bot, sticker)),
@@ -32,9 +29,9 @@ export function transformStickerPack(bot: Bot, payload: DiscordStickerPack) {
     coverStickerId: payload.cover_sticker_id ? bot.transformers.snowflake(payload.cover_sticker_id) : undefined,
     description: payload.description,
     bannerAssetId: payload.banner_asset_id ? bot.transformers.snowflake(payload.banner_asset_id) : undefined,
-  }
+  } as StickerPack
 
-  return pack as Optionalize<typeof pack>
+  return bot.transformers.customizers.stickerPack(bot, payload, pack)
 }
 
 export interface Sticker {
@@ -61,4 +58,12 @@ export interface Sticker {
   /** A sticker's sort order within a pack */
   sortValue?: number
 }
-export interface StickerPack extends ReturnType<typeof transformStickerPack> {}
+export interface StickerPack {
+  coverStickerId?: bigint
+  bannerAssetId?: bigint
+  id: bigint
+  name: string
+  description: string
+  stickers: Sticker[]
+  skuId: bigint
+}
diff --git a/packages/bot/src/transformers/team.ts b/packages/bot/src/transformers/team.ts
index bf05b6ee6..90e350449 100644
--- a/packages/bot/src/transformers/team.ts
+++ b/packages/bot/src/transformers/team.ts
@@ -1,14 +1,11 @@
-import type { DiscordTeam } from '@discordeno/types'
-import { iconHashToBigInt, type Bot } from '../index.js'
-import type { Optionalize } from '../optionalize.js'
+import type { DiscordTeam, TeamMembershipStates } from '@discordeno/types'
+import { iconHashToBigInt, type Bot, type User } from '../index.js'
 
-// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
-export function transformTeam(bot: Bot, payload: DiscordTeam) {
+export function transformTeam(bot: Bot, payload: DiscordTeam): Team {
   const id = bot.transformers.snowflake(payload.id)
 
   const team = {
     name: payload.name,
-
     id,
     icon: payload.icon ? iconHashToBigInt(payload.icon) : undefined,
     ownerUserId: bot.transformers.snowflake(payload.owner_user_id),
@@ -18,9 +15,20 @@ export function transformTeam(bot: Bot, payload: DiscordTeam) {
       teamId: id,
       user: bot.transformers.user(bot, member.user),
     })),
-  }
+  } as Team
 
-  return team as Optionalize<typeof team>
+  return bot.transformers.customizers.team(bot, payload, team)
 }
 
-export interface Team extends ReturnType<typeof transformTeam> {}
+export interface Team {
+  icon?: bigint | undefined
+  id: bigint
+  name: string
+  ownerUserId: bigint
+  members: Array<{
+    membershipState: TeamMembershipStates
+    permissions: Array<'*'>
+    teamId: bigint
+    user: User
+  }>
+}
diff --git a/packages/bot/src/transformers/template.ts b/packages/bot/src/transformers/template.ts
index db8d9221c..6b1545603 100644
--- a/packages/bot/src/transformers/template.ts
+++ b/packages/bot/src/transformers/template.ts
@@ -1,9 +1,7 @@
 import type { DiscordTemplate } from '@discordeno/types'
-import type { Bot } from '../index.js'
-import type { Optionalize } from '../optionalize.js'
+import type { Bot, User } from '../index.js'
 
-// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
-export function transformTemplate(bot: Bot, payload: DiscordTemplate) {
+export function transformTemplate(bot: Bot, payload: DiscordTemplate): Template {
   const template = {
     code: payload.code,
     name: payload.name,
@@ -16,9 +14,21 @@ export function transformTemplate(bot: Bot, payload: DiscordTemplate) {
     sourceGuildId: bot.transformers.snowflake(payload.source_guild_id),
     serializedSourceGuild: payload.serialized_source_guild,
     isDirty: payload.is_dirty ?? undefined,
-  }
+  } as Template
 
-  return template as Optionalize<typeof template>
+  return bot.transformers.customizers.template(bot, payload, template)
 }
 
-export interface Template extends ReturnType<typeof transformTemplate> {}
+export interface Template {
+  description?: string | null
+  isDirty?: boolean
+  name: string
+  creatorId: bigint
+  createdAt: number
+  code: string
+  usageCount: number
+  creator: User
+  updatedAt: number
+  sourceGuildId: bigint
+  serializedSourceGuild: NonNullable<DiscordTemplate['serialized_source_guild']>
+}
diff --git a/packages/bot/src/transformers/threadMember.ts b/packages/bot/src/transformers/threadMember.ts
index b99a241bc..bb1cd11ac 100644
--- a/packages/bot/src/transformers/threadMember.ts
+++ b/packages/bot/src/transformers/threadMember.ts
@@ -1,28 +1,33 @@
 import type { DiscordThreadMember } from '@discordeno/types'
 import type { Bot } from '../index.js'
-import type { Optionalize } from '../optionalize.js'
 import type { DiscordThreadMemberGuildCreate } from '../typings.js'
 
-// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
-export function transformThreadMember(bot: Bot, payload: DiscordThreadMember) {
+export function transformThreadMember(bot: Bot, payload: DiscordThreadMember): ThreadMember {
   const threadMember = {
     id: payload.id ? bot.transformers.snowflake(payload.id) : undefined,
     userId: payload.user_id ? bot.transformers.snowflake(payload.user_id) : undefined,
     joinTimestamp: Date.parse(payload.join_timestamp),
     flags: payload.flags,
-  }
+  } as ThreadMember
 
-  return threadMember as Optionalize<typeof threadMember>
+  return bot.transformers.customizers.threadMember(bot, payload, threadMember)
 }
 
-// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
-export function transformThreadMemberGuildCreate(bot: Bot, payload: DiscordThreadMemberGuildCreate) {
+export function transformThreadMemberGuildCreate(bot: Bot, payload: DiscordThreadMemberGuildCreate): ThreadMemberGuildCreate {
   const threadMember = {
     joinTimestamp: Date.parse(payload.join_timestamp),
-  }
+  } as ThreadMemberGuildCreate
 
-  return threadMember as Optionalize<typeof threadMember>
+  return bot.transformers.customizers.threadMemberGuildCreate(bot, payload, threadMember)
 }
 
-export interface ThreadMember extends ReturnType<typeof transformThreadMember> {}
-export interface ThreadMemberGuildCreate extends ReturnType<typeof transformThreadMemberGuildCreate> {}
+export interface ThreadMember {
+  id?: bigint
+  userId?: bigint
+  flags: number
+  joinTimestamp: number
+}
+
+export interface ThreadMemberGuildCreate {
+  joinTimestamp: number
+}
diff --git a/packages/bot/src/transformers/voiceRegion.ts b/packages/bot/src/transformers/voiceRegion.ts
index a0ae7d8f6..67e3aee37 100644
--- a/packages/bot/src/transformers/voiceRegion.ts
+++ b/packages/bot/src/transformers/voiceRegion.ts
@@ -1,20 +1,22 @@
 import type { DiscordVoiceRegion } from '@discordeno/types'
 import type { Bot } from '../index.js'
-import type { Optionalize } from '../optionalize.js'
 
-// TODO: Rename `VoiceRegions` to `VoiceRegion`.
-
-// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
-export function transformVoiceRegion(bot: Bot, payload: DiscordVoiceRegion) {
+export function transformVoiceRegion(bot: Bot, payload: DiscordVoiceRegion): VoiceRegion {
   const voiceRegion = {
     id: payload.id,
     name: payload.name,
     optimal: payload.optimal,
     deprecated: payload.deprecated,
     custom: payload.custom,
-  }
+  } as VoiceRegion
 
-  return voiceRegion as Optionalize<typeof voiceRegion>
+  return bot.transformers.customizers.voiceRegion(bot, payload, voiceRegion)
 }
 
-export interface VoiceRegions extends ReturnType<typeof transformVoiceRegion> {}
+export interface VoiceRegion {
+  id: string
+  name: string
+  custom: boolean
+  optimal: boolean
+  deprecated: boolean
+}
diff --git a/packages/bot/src/transformers/voiceState.ts b/packages/bot/src/transformers/voiceState.ts
index 4a4d94e9d..ae64f394e 100644
--- a/packages/bot/src/transformers/voiceState.ts
+++ b/packages/bot/src/transformers/voiceState.ts
@@ -1,10 +1,8 @@
 import type { DiscordVoiceState } from '@discordeno/types'
 import type { Bot } from '../index.js'
-import type { Optionalize } from '../optionalize.js'
 import { VoiceStateToggles } from './toggles/voice.js'
 
-// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
-export function transformVoiceState(bot: Bot, payload: { voiceState: DiscordVoiceState } & { guildId: bigint }) {
+export function transformVoiceState(bot: Bot, payload: { voiceState: DiscordVoiceState } & { guildId: bigint }): VoiceState {
   const voiceState = {
     toggles: new VoiceStateToggles(payload.voiceState),
 
@@ -14,9 +12,16 @@ export function transformVoiceState(bot: Bot, payload: { voiceState: DiscordVoic
     channelId: payload.voiceState.channel_id ? bot.transformers.snowflake(payload.voiceState.channel_id) : undefined,
     guildId: payload.guildId || (payload.voiceState.guild_id ? bot.transformers.snowflake(payload.voiceState.guild_id) : 0n),
     userId: payload.voiceState.user_id ? bot.transformers.snowflake(payload.voiceState.user_id) : 0n,
-  }
+  } as VoiceState
 
-  return voiceState as Optionalize<typeof voiceState>
+  return bot.transformers.customizers.voiceState(bot, payload.voiceState, voiceState)
 }
 
-export interface VoiceState extends ReturnType<typeof transformVoiceState> {}
+export interface VoiceState {
+  requestToSpeakTimestamp?: number
+  channelId?: bigint
+  guildId: bigint
+  toggles: VoiceStateToggles
+  sessionId: string
+  userId: bigint
+}
diff --git a/packages/bot/src/transformers/webhook.ts b/packages/bot/src/transformers/webhook.ts
index 4cfecaac2..43f3331ee 100644
--- a/packages/bot/src/transformers/webhook.ts
+++ b/packages/bot/src/transformers/webhook.ts
@@ -1,8 +1,7 @@
 import type { DiscordWebhook, WebhookTypes } from '@discordeno/types'
 import { iconHashToBigInt, type Bot, type Channel, type Guild, type User } from '../index.js'
 
-// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
-export function transformWebhook(bot: Bot, payload: DiscordWebhook) {
+export function transformWebhook(bot: Bot, payload: DiscordWebhook): Webhook {
   const props = bot.transformers.desiredProperties.webhook
   const webhook = {} as Webhook
 
@@ -28,7 +27,7 @@ export function transformWebhook(bot: Bot, payload: DiscordWebhook) {
     }
   if (props.url && payload.url) webhook.url = payload.url
 
-  return webhook
+  return bot.transformers.customizers.webhook(bot, payload, webhook)
 }
 
 export interface Webhook {
diff --git a/packages/bot/src/transformers/welcomeScreen.ts b/packages/bot/src/transformers/welcomeScreen.ts
index 63a299f74..a8aef7849 100644
--- a/packages/bot/src/transformers/welcomeScreen.ts
+++ b/packages/bot/src/transformers/welcomeScreen.ts
@@ -1,9 +1,7 @@
 import type { DiscordWelcomeScreen } from '@discordeno/types'
 import type { Bot } from '../index.js'
-import type { Optionalize } from '../optionalize.js'
 
-// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
-export function transformWelcomeScreen(bot: Bot, payload: DiscordWelcomeScreen) {
+export function transformWelcomeScreen(bot: Bot, payload: DiscordWelcomeScreen): WelcomeScreen {
   const welcomeScreen = {
     description: payload.description ?? undefined,
     welcomeChannels: payload.welcome_channels.map((channel) => ({
@@ -12,9 +10,17 @@ export function transformWelcomeScreen(bot: Bot, payload: DiscordWelcomeScreen)
       emojiId: channel.emoji_id ? bot.transformers.snowflake(channel.emoji_id) : undefined,
       emojiName: channel.emoji_name ?? undefined,
     })),
-  }
+  } as WelcomeScreen
 
-  return welcomeScreen as Optionalize<typeof welcomeScreen>
+  return bot.transformers.customizers.welcomeScreen(bot, payload, welcomeScreen)
 }
 
-export interface WelcomeScreen extends ReturnType<typeof transformWelcomeScreen> {}
+export interface WelcomeScreen {
+  description?: string
+  welcomeChannels: Array<{
+    channelId: bigint
+    description: string
+    emojiId?: bigint
+    emojiName?: string
+  }>
+}
diff --git a/packages/bot/src/transformers/widget.ts b/packages/bot/src/transformers/widget.ts
index 78061610b..0489dcdca 100644
--- a/packages/bot/src/transformers/widget.ts
+++ b/packages/bot/src/transformers/widget.ts
@@ -1,9 +1,7 @@
 import type { DiscordGuildWidget } from '@discordeno/types'
 import { iconHashToBigInt, type Bot } from '../index.js'
-import type { Optionalize } from '../optionalize.js'
 
-// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
-export function transformWidget(bot: Bot, payload: DiscordGuildWidget) {
+export function transformWidget(bot: Bot, payload: DiscordGuildWidget): GuildWidget {
   const widget = {
     id: bot.transformers.snowflake(payload.id),
     name: payload.name,
@@ -22,9 +20,27 @@ export function transformWidget(bot: Bot, payload: DiscordGuildWidget) {
       avatarUrl: member.avatar_url,
     })),
     presenceCount: payload.presence_count,
-  }
+  } as GuildWidget
 
-  return widget as Optionalize<typeof widget>
+  return bot.transformers.customizers.widget(bot, payload, widget)
 }
 
-export interface GuildWidget extends ReturnType<typeof transformWidget> {}
+export interface GuildWidget {
+  id: bigint
+  name: string
+  members: Array<{
+    id: bigint
+    username: string
+    discriminator: string
+    avatar?: bigint
+    status: string
+    avatarUrl: string
+  }>
+  channels: Array<{
+    id: bigint
+    name: string
+    position: number
+  }>
+  instant_invite: string
+  presenceCount: number
+}
diff --git a/packages/bot/src/transformers/widgetSettings.ts b/packages/bot/src/transformers/widgetSettings.ts
index 4b3697043..5ca558c80 100644
--- a/packages/bot/src/transformers/widgetSettings.ts
+++ b/packages/bot/src/transformers/widgetSettings.ts
@@ -1,15 +1,16 @@
 import type { DiscordGuildWidgetSettings } from '@discordeno/types'
 import type { Bot } from '../index.js'
-import type { Optionalize } from '../optionalize.js'
 
-// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
-export function transformWidgetSettings(bot: Bot, payload: DiscordGuildWidgetSettings) {
+export function transformWidgetSettings(bot: Bot, payload: DiscordGuildWidgetSettings): GuildWidgetSettings {
   const widget = {
     enabled: payload.enabled,
     channelId: payload.channel_id ?? undefined,
   }
 
-  return widget as Optionalize<typeof widget>
+  return bot.transformers.customizers.widgetSettings(bot, payload, widget)
 }
 
-export interface GuildWidgetSettings extends ReturnType<typeof transformWidgetSettings> {}
+export interface GuildWidgetSettings {
+  channelId?: string
+  enabled: boolean
+}