import { type CustomTransport, type Transport } from "viem";
export interface SplitTransportParams {
    overrides: {
        methods: string[];
        transport: Transport;
    }[];
    fallback: Transport;
}
/**
 * The Split Transport allows you to split RPC traffic for specific methods across
 * different RPC providers. This is done by specifying the methods you want handled
 * specially as overrides and providing a fallback transport for all other methods.
 *
 * @example
 * ```ts
 * import { createPublicClient, http } from "viem";
 * import { split } from "@aa-sdk/core";
 *
 * const bundlerMethods = [
 *  "eth_sendUserOperation",
 *  "eth_estimateUserOperationGas",
 *  "eth_getUserOperationReceipt",
 *  "eth_getUserOperationByHash",
 *  "eth_supportedEntryPoints"
 * ];
 *
 * const clientWithSplit = createPublicClient({
 *  transport: split({
 *      overrides: [{
 *          methods: bundlerMethods,
 *          transport: http(BUNDLER_RPC_URL)
 *      }],
 *      fallback: http(OTHER_RPC_URL)
 *  }),
 * });
 * ```
 *
 * @param {SplitTransportParams} params split transport configuration containing the methods overrides and fallback transport
 * @returns {CustomTransport} a viem Transport that splits traffic
 */
export declare const split: (params: SplitTransportParams) => CustomTransport;