import { IRpcClient } from '@interchainjs/types';
import { ICosmosEventClient } from '../types/cosmos-client-interfaces';
import { Block } from '../types/responses/common/block/block';
import { BlockHeader } from '../types/responses/common/header/block-header';
import { TxEvent, BlockEvent } from '../types/responses/common/event';
export declare class CosmosEventClient implements ICosmosEventClient {
    private rpcClient;
    private activeSubscriptions;
    constructor(rpcClient: IRpcClient);
    subscribeToEvents<TEvent>(eventType: string, filter?: unknown): AsyncIterable<TEvent>;
    subscribeToBlocks(): AsyncIterable<Block>;
    subscribeToBlockHeaders(): AsyncIterable<BlockHeader>;
    subscribeToTxs(query?: string): AsyncIterable<TxEvent>;
    subscribeToValidatorSetUpdates(): AsyncIterable<BlockEvent>;
    unsubscribeFromAll(): Promise<void>;
    private buildQuery;
}