import { ContractRequestError } from './contract-errors';
import { type ContractEnvelope } from './contract-envelope';
import type { RequestData } from './contract-support';
export declare function requestEnvelopeData(input: string): RequestData;
export declare function requestErrorFromUnknown(error: unknown): ContractRequestError;
export declare function fallbackErrorEnvelope(fallback: RequestData, requestError: ContractRequestError): ContractEnvelope;
//# sourceMappingURL=contract-fallback.d.ts.map