import type { EvmChainEntry, EvmRpcConfig } from "./types";
/**
 * Built-in EVM chains. Matches the chains for which the upstream gas
 * estimation API has full support, so users on these networks get
 * gas-API estimation; chains outside still work via `eth_feeHistory`.
 *
 * Keys are CAIP-2 strings (`eip155:<chainId>`) on disk; friendly slugs
 * in `key` are for CLI flag input only.
 */
export declare const BUILT_IN_EVM_CHAINS: EvmChainEntry[];
export declare function toEvmRpcConfig(chain: EvmChainEntry, rpcUrl: string): EvmRpcConfig;