Backport: fix(providers/assemblyai): remove topics (#9703)

This is an automated backport of #9698 to the release-v5.0 branch.

Co-authored-by: Gregor Martynus <39992+gr2m@users.noreply.github.com>

Author: vercel-ai-sdk[bot]

.changeset/big-chicken-jam.md

@@ -0,0 +1,7 @@
+---
+'@ai-sdk/assemblyai': patch
+---
+
+fix(providers/assemblyai): remove topics
+
+We were told the feature was priveatly beta-tested but never rolled out.

packages/assemblyai/src/assemblyai-api-types.ts

@@ -339,11 +339,6 @@ export type AssemblyAITranscriptionAPITypes = {
     | 'headline'
     | 'paragraph';
 
-  /**
-   * The list of custom topics
-   */
-  topics?: string[];
-
   /**
    * The header name to be sent with the transcript completed or failed webhook requests
    */

packages/assemblyai/src/assemblyai-transcription-model.test.ts

@@ -220,7 +220,6 @@ describe('doGenerate', () => {
         summary_type: 'bullets',
         summary_model: 'informative',
         summary: '- Hello, world!',
-        topics: ['topics'],
         sentiment_analysis: true,
         entity_detection: true,
         entities: [
@@ -241,7 +240,6 @@ describe('doGenerate', () => {
         error: 'error',
         dual_channel: false,
         speed_boost: true,
-        custom_topics: true,
       },
     };
   }

packages/assemblyai/src/assemblyai-transcription-model.ts

@@ -145,10 +145,6 @@ const assemblyaiProviderOptionsSchema = z.object({
    * Type of summary to generate.
    */
   summaryType: z.string().nullish(),
-  /**
-   * List of topics to identify in the transcription.
-   */
-  topics: z.array(z.string()).nullish(),
   /**
    * Name of the authentication header for webhook requests.
    */
@@ -247,7 +243,6 @@ export class AssemblyAITranscriptionModel implements TranscriptionModelV2 {
       body.summary_model =
         (assemblyaiOptions.summaryModel as never) ?? undefined;
       body.summary_type = (assemblyaiOptions.summaryType as never) ?? undefined;
-      body.topics = assemblyaiOptions.topics ?? undefined;
       body.webhook_auth_header_name =
         assemblyaiOptions.webhookAuthHeaderName ?? undefined;
       body.webhook_auth_header_value =