axValidateChatRequestMessage

function axValidateChatRequestMessage(item: 
  | {
  cache?: boolean;
  content: string;
  role: "system";
}
  | {
  cache?: boolean;
  content:   | string
     | (
     | {
     cache?: boolean;
     text: string;
     type: "text";
   }
     | {
     altText?: string;
     cache?: boolean;
     details?: "high" | "low" | "auto";
     image: string;
     mimeType: string;
     optimize?: "auto" | "quality" | "size";
     type: "image";
   }
     | {
     cache?: boolean;
     channels?: number;
     data: string;
     duration?: number;
     format?: AxAudioFormat;
     mimeType?: string;
     sampleRate?: number;
     transcription?: string;
     type: "audio";
   }
     | {
     cache?: boolean;
     data: string;
     extractedText?: string;
     filename?: string;
     mimeType: string;
     type: "file";
   }
     | {
     cache?: boolean;
     extractedText?: string;
     filename?: string;
     fileUri: string;
     mimeType: string;
     type: "file";
   }
     | {
     cache?: boolean;
     cachedContent?: string;
     description?: string;
     title?: string;
     type: "url";
     url: string;
   })[];
  name?: string;
  role: "user";
}
  | {
  audio?: {
     id: string;
     transcript?: string;
  };
  cache?: boolean;
  content?: string;
  functionCalls?: object[];
  name?: string;
  role: "assistant";
  thought?: string;
  thoughtBlocks?: AxThoughtBlockItem[];
}
  | {
  cache?: boolean;
  content?: AxFunctionResultContent;
  functionId: string;
  isError?: boolean;
  protocolResult?: {
     protocol: NonNullable<
        | undefined
        | {
        annotations?: Record<string, unknown>;
        kind: "mcp";
        meta?: Record<string, unknown>;
        name: string;
        namespace: string;
      }
        | {
        kind: "ucp";
        meta?: Record<string, unknown>;
        name: string;
        namespace: string;
     }>;
     value: unknown;
  };
  result: string;
  role: "function";
}): void;