/*******************************************************************************
 *   (c) 2023 unipackage
 *
 *  Licensed under either the MIT License (the "MIT License") or the Apache License, Version 2.0
 *  (the "Apache License"). You may not use this file except in compliance with one of these
 *  licenses. You may obtain a copy of the MIT License at
 *
 *      https://opensource.org/licenses/MIT
 *
 *  Or the Apache License, Version 2.0 at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the MIT License or the Apache License for the specific language governing permissions and
 *  limitations under the respective licenses.
 ********************************************************************************/
import { RPCRequest, RPCResponse, RPCOptions, IRPCEngine } from "../../interface";
import { LotusRpcEngineConfig } from "@glif/filecoin-rpc-client";
export declare class FilecoinRPCEngine implements IRPCEngine {
    private engine;
    private defaultOptions;
    /**
     * Constructs a FilecoinRPCEngine instance.
     *
     * @param config - Configuration for the LotusRpcEngine.
     * @param defaultOptions - Default RPCOptions.
     */
    constructor(config: LotusRpcEngineConfig, defaultOptions?: RPCOptions);
    /**
     * Sends an RPC request using the configured LotusRpcEngine with optional options.
     *
     * @param request - The RPC request object.
     * @param options - Optional configuration options for the request.
     * @returns A promise resolving to an RPCResponse.
     */
    request(request: RPCRequest, options?: RPCOptions): Promise<RPCResponse<any>>;
    /**
     * Sends an RPC request using the configured LotusRpcEngine with optional options.
     *
     * @param request - The RPC request object.
     * @param options - Optional configuration options for the request.
     * @returns A promise resolving to an RPCResponse.
     */
    private engineRequest;
    /**
     * Handles retry logic for an RPC request based on the provided options.
     *
     * @param request - The RPC request object.
     * @param options - Configuration options for the request and retries.
     * @returns A promise resolving to an RPCResponse.
     */
    private retryRequest;
}
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