Function: serializeTask()

function serializeTask(task: {
  artifacts?:   | {
     append?: boolean | null;
     description?: string | null;
     index: number;
     lastChunk?: boolean | null;
     metadata?: Metadata | null;
     name?: string | null;
     parts: (
        | {
        metadata?: Metadata | null;
        text: string;
        type: "text";
      }
        | {
        file: {
           bytes?: string | null;
           mimeType?: string | null;
           name?: string | null;
           uri?: string | null;
        };
        metadata?: Metadata | null;
        type: "file";
      }
        | {
        data: Metadata;
        metadata?: Metadata | null;
        type: "data";
     })[];
   }[]
     | null;
  history?:   | {
     metadata?: Metadata | null;
     parts: (
        | {
        metadata?: Metadata | null;
        text: string;
        type: "text";
      }
        | {
        file: {
           bytes?: string | null;
           mimeType?: string | null;
           name?: string | null;
           uri?: string | null;
        };
        metadata?: Metadata | null;
        type: "file";
      }
        | {
        data: Metadata;
        metadata?: Metadata | null;
        type: "data";
     })[];
     role: "user" | "agent";
   }[]
     | null;
  id: string;
  metadata?: Metadata | null;
  sessionId?: string | null;
  status: {
     message?:   | {
        metadata?: Metadata | null;
        parts: (
           | {
           metadata?: Metadata | null;
           text: string;
           type: "text";
         }
           | {
           file: {
              bytes?: string | null;
              mimeType?: string | null;
              name?: string | null;
              uri?: string | null;
           };
           metadata?: Metadata | null;
           type: "file";
         }
           | {
           data: Metadata;
           metadata?: Metadata | null;
           type: "data";
        })[];
        role: "user" | "agent";
      }
        | null;
     state: TaskState;
     timestamp: Date;
  };
}): TaskJSON;