Function StreamPart

packages/ai/ai/src/Response.ts:366–399

(
  toolkit: T
)

 * @category Schemas
 */
export const StreamPart = <T extends Toolkit.Any | Toolkit.WithHandler<any>>(
  toolkit: T
): Schema.Schema<
  StreamPart<
    T extends Toolkit.Any ? Toolkit.Tools<T> : Toolkit.WithHandlerTools<T>
  >,
  StreamPartEncoded
> => {
  const toolCalls: Array<Schema.Schema<ToolCallPart<string, any>, ToolCallPartEncoded>> = []
  const toolCallResults: Array<Schema.Schema<ToolResultPart<string, any, any>, ToolResultPartEncoded>> = []
  for (const tool of Object.values(toolkit.tools as Record<string, Tool.Any>)) {
    toolCalls.push(ToolCallPart(tool.name, tool.parametersSchema as any))
    toolCallResults.push(ToolResultPart(tool.name, tool.successSchema, tool.failureSchema))
  }
  return Schema.Union(
    TextStartPart,
    TextDeltaPart,
    TextEndPart,
    ReasoningStartPart,
    ReasoningDeltaPart,
    ReasoningEndPart,
    ToolParamsStartPart,
    ToolParamsDeltaPart,
    ToolParamsEndPart,
    FilePart,
    DocumentSourcePart,
    UrlSourcePart,
    ResponseMetadataPart,
    FinishPart,
    ErrorPart,
    ...toolCalls,
    ...toolCallResults
  ) as any
}

// =============================================================================
// Utility Types