import { ISCPMalformedMessageError } from '../../exceptions';
import { UpstreamMetadata } from '../../message';
import { Message as MessagePb } from '../codegen/message';
export declare const withoutExtensionFields: {
    toWire: () => UpstreamMetadata;
    toProto: () => MessagePb;
};
export declare const withExtensionFields: {
    toWire: () => UpstreamMetadata;
    toProto: () => MessagePb;
};
export declare const withMetadataBaseTime: {
    toWire: () => UpstreamMetadata;
    toProto: () => MessagePb;
};
export declare const invalidWire: {
    metadataOneOf: {
        toWire: () => UpstreamMetadata;
        toErrorClass(): typeof ISCPMalformedMessageError;
        toError(): ISCPMalformedMessageError;
    };
};
export declare const invalidProto: {
    metadataOneOf: {
        toProto: () => MessagePb;
        toErrorClass(): typeof ISCPMalformedMessageError;
        toError(): ISCPMalformedMessageError;
    };
};