export declare function getRequestPathname(request: Request): string;
export declare function getMountedPrefixFromContext(request: Request, context: unknown): string;
export declare function removeMountedPrefixFromBatchPath(pathWithQuery: string, prefix: string): string;
export declare function getExpectedEnvelopeOrigin(request: Request): string;
export declare function isRpcRequest(request: Request, rpcPath: `/${string}`): boolean;