/**
 * Shared API URL management for all exchanges.
 * URLs are mutable to support --network testnet switching.
 */
export declare let PACIFICA_API_URL: string;
export declare let HYPERLIQUID_API_URL: string;
export declare let LIGHTER_API_URL: string;
/**
 * Switch shared API URLs between mainnet and testnet.
 * Call from CLI entry point after parsing --network flag.
 */
export declare function setSharedApiNetwork(network: "mainnet" | "testnet"): void;