/**
 * Validates an address and returns the parsed (checksummed) version of that address
 * @param address the unchecksummed hex address
 */
export declare function validateAndParseAddress(address: string): string;
/**
 * Checks if an address is valid by checking 0x prefix, length === 42 and hex encoding.
 * @param address the unchecksummed hex address
 */
export declare function checkValidAddress(address: string): string;