import type { Rpc } from '@agoric/cosmic-proto/codegen/helpers.js';
import { QueryClient } from '@cosmjs/stargate';
import { QueryEpochInfosRequest, QueryEpochInfosResponse, QueryCurrentEpochRequest, QueryCurrentEpochResponse } from '@agoric/cosmic-proto/codegen/cosmos/epochs/v1beta1/query.js';
/** Query defines the gRPC querier service. */
export interface Query {
    /** EpochInfos provide running epochInfos */
    epochInfos(request?: QueryEpochInfosRequest): Promise<QueryEpochInfosResponse>;
    /** CurrentEpoch provide current epoch of specified identifier */
    currentEpoch(request: QueryCurrentEpochRequest): Promise<QueryCurrentEpochResponse>;
}
export declare class QueryClientImpl implements Query {
    private readonly rpc;
    constructor(rpc: Rpc);
    epochInfos(request?: QueryEpochInfosRequest): Promise<QueryEpochInfosResponse>;
    currentEpoch(request: QueryCurrentEpochRequest): Promise<QueryCurrentEpochResponse>;
}
export declare const createRpcQueryExtension: (base: QueryClient) => {
    epochInfos(request?: QueryEpochInfosRequest): Promise<QueryEpochInfosResponse>;
    currentEpoch(request: QueryCurrentEpochRequest): Promise<QueryCurrentEpochResponse>;
};
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