/**
 * Convert any address format to hex bytes.
 * - EVM address (0x prefix): return as-is lowercase
 * - Tron address (T prefix, 34 chars, 0x41 byte): convert via tronToHex
 * - Solana/other base58 address: base58 decode to full bytes
 * @param addr - address in any supported format
 */
export declare function addressToHex(addr: string): string;
/** Check if a string is valid base58 encoding. */
export declare function isBase58(addr: string): boolean;
/** Check if address is Tron format (T prefix, 34 chars, 0x41 first byte after decode). */
export declare function isTronAddress(addr: string): boolean;
/** Check if chain name is Solana. */
export declare function isSolanaChain(chainName: string): boolean;