import { BigNumberish } from '../types/index.js';
/**
 * Format a hex number to '0x' and 64 characters, adding leading zeros if necessary.
 * @param {BigNumberish} address
 * @returns {string} Hex string : 0x followed by 64 characters. No upper case characters in the response.
 * @example
 * ```typescript
 * const address = "0x90591d9fa3efc87067d95a643f8455e0b8190eb8cb7bfd39e4fb7571fdf";
 * const result = addAddressPadding(address);
 * // result = "0x0000090591d9fa3efc87067d95a643f8455e0b8190eb8cb7bfd39e4fb7571fdf"
 * ```
 */
export declare function addAddressPadding(address: BigNumberish): string;
/**
 * Check the validity of a Starknet address, and format it as a hex number : '0x' and 64 characters, adding leading zeros if necessary.
 * @param {BigNumberish} address
 * @returns {string} Hex string : 0x followed by 64 characters. No upper case characters in the response.
 * @example
 * ```typescript
 * const address = "0x90591d9fa3efc87067d95a643f8455e0b8190eb8cb7bfd39e4fb7571fdf";
 * const result = validateAndParseAddress(address);
 * // result = "0x0000090591d9fa3efc87067d95a643f8455e0b8190eb8cb7bfd39e4fb7571fdf"
 * ```
 */
export declare function validateAndParseAddress(address: BigNumberish): string;
/**
 * Convert an address to her checksum representation which uses a specific pattern of uppercase and lowercase letters within
 * a given address to reduce the risk of errors introduced from typing an address or cut and paste issues.
 * @param {BigNumberish} address
 * @returns {string} Hex string : 0x followed by 64 characters. Mix of uppercase and lowercase
 * @example
 * ```typescript
 * const address = "0x90591d9fa3efc87067d95a643f8455e0b8190eb8cb7bfd39e4fb7571fdf";
 * const result = getChecksumAddress(address);
 * // result = "0x0000090591D9fA3EfC87067d95a643f8455E0b8190eb8Cb7bFd39e4fb7571fDF"
 * ```
 */
export declare function getChecksumAddress(address: BigNumberish): string;
/**
 * If the casing of an address is mixed, it is a Checksum Address, which uses a specific pattern of uppercase and lowercase letters within
 * a given address to reduce the risk of errors introduced from typing an address or cut and paste issues.
 *
 * @param address string
 *
 * @returns true if the ChecksumAddress is valid
 * @example
 * ```typescript
 * const address = "0x0000090591D9fA3EfC87067d95a643f8455E0b8190eb8Cb7bFd39e4fb7571fDF";
 * const result = validateChecksumAddress(address);
 * // result = true
 * ```
 */
export declare function validateChecksumAddress(address: string): boolean;