import { Operation, OperationResponse, RelayLink } from 'relay-link';
import { HttpOptions } from 'relay-link-http-common';
import { Observable } from 'relay-runtime';
export declare namespace BatchHttpLink {
    interface Options extends HttpOptions {
        batchMax?: number;
        batchInterval?: number;
        batchKey?: (operation: Operation) => string;
    }
}
export declare class BatchHttpLink extends RelayLink {
    private readonly batchInterval;
    private readonly batchMax;
    private readonly batcher;
    constructor(fetchParams?: BatchHttpLink.Options);
    request(operation: Operation): Observable<OperationResponse>;
}
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