import { JsonRpcRequest, JsonRpcSuccessResponse } from "@cosmjs/json-rpc";
import { Stream } from "xstream";
/**
 * An event emitted from Tendermint after subscribing via RPC.
 *
 * These events are passed as the `result` of JSON-RPC responses, which is kind
 * of hacky because it breaks the idea that exactly one JSON-RPC response belongs
 * to each JSON-RPC request. But this is how subscriptions work in Tendermint.
 */
export interface SubscriptionEvent {
    readonly query: string;
    readonly data: {
        readonly type: string;
        readonly value: Record<string, any>;
    };
}
export interface RpcClient {
    readonly execute: (request: JsonRpcRequest) => Promise<JsonRpcSuccessResponse>;
    readonly disconnect: () => void;
}
export interface RpcStreamingClient extends RpcClient {
    readonly listen: (request: JsonRpcRequest) => Stream<SubscriptionEvent>;
}
export declare function instanceOfRpcStreamingClient(client: RpcClient): client is RpcStreamingClient;
export declare function hasProtocol(url: string): boolean;