import { DownstreamCall } from '../../message';
import { Message as MessagePb } from '../codegen/message';
export declare const withExtensionFields: {
    toWire: () => DownstreamCall;
    toProto: () => MessagePb;
};
export declare const withoutExtensionFields: {
    toWire: () => DownstreamCall;
    toProto: () => MessagePb;
};