export declare const AG_UI_MAX_REQUEST_BODY_BYTES: number;
export declare function parseAgUiJsonBody(request: Request): Promise<unknown>;
export declare function createAgUiBodyLimitErrorResponse(error: unknown, errorLabel: string): Response | undefined;
export declare function isRequest(value: unknown): value is Request;
export declare function extractRequest(requestOrCtx: unknown): Request;
export declare function parseAgUiJsonRequestOrError<T>(parseRequest: () => Promise<T>, errorLabel: string): Promise<T | Response>;
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