/// <reference types="node" />
import type { Json, JsonRpcParams, JsonRpcRequest, JsonRpcResponse } from '@metamask/utils';
export declare type RequestHeaders = Record<string, string>;
export declare type ExtendedJsonRpcRequest<Params extends JsonRpcParams> = JsonRpcRequest<Params> & {
    origin?: string;
};
/**
 * These are networks:
 *
 * 1. for which Infura has released official, production support (see <https://docs.infura.io>)
 * 2. which support the JSON-RPC 2.0 protocol
 */
export declare type InfuraJsonRpcSupportedNetwork = 'mainnet' | 'goerli' | 'sepolia' | 'filecoin' | 'polygon-mainnet' | 'polygon-mumbai' | 'palm-mainnet' | 'palm-testnet' | 'optimism-mainnet' | 'optimism-goerli' | 'arbitrum-mainnet' | 'arbitrum-goerli' | 'aurora-mainnet' | 'aurora-testnet' | 'avalanche-mainnet' | 'avalanche-fuji' | 'celo-mainnet' | 'celo-alfajores' | 'near-mainnet' | 'near-testnet' | 'starknet-mainnet' | 'starknet-goerli' | 'linea-goerli' | 'linea-sepolia' | 'linea-mainnet' | 'sei-mainnet' | 'sei-testnet';
/**
 * A copy of the `AbstractRpcService` type in metamask/network-controller`, but
 * keeping only the `request` method.
 *
 * We cannot get `AbstractRpcService` directly from
 * `@metamask/network-controller` because relying on this package would create a
 * circular dependency.
 *
 * This type should be accurate as of `@metamask/network-controller` 24.x and
 * `@metamask/utils` 11.x.
 */
export declare type AbstractRpcServiceLike = {
    request: <Params extends JsonRpcParams, Result extends Json>(jsonRpcRequest: JsonRpcRequest<Params>, fetchOptions?: RequestInit) => Promise<JsonRpcResponse<Result | null>>;
};