import { Empty } from '../../../google/protobuf/empty.js';
import { Timestamp } from '../../../google/protobuf/timestamp.js';
interface Rpc {
    request(service: string, method: string, contentType: 'application/json' | 'application/protobuf', data: object | Uint8Array): Promise<object | Uint8Array>;
}
export interface ClockClient {
    Now(request: Empty): Promise<Timestamp>;
}
export declare class ClockClientJSON implements ClockClient {
    private readonly rpc;
    constructor(rpc: Rpc);
    Now(request: Empty): Promise<Timestamp>;
}
export declare class ClockClientProtobuf implements ClockClient {
    private readonly rpc;
    constructor(rpc: Rpc);
    Now(request: Empty): Promise<Timestamp>;
}
export {};
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