/**
 * A library class for address
 */
export declare abstract class Address {
    private static NULL_ADDRESS;
    static nullAddress(): string;
    static isNullAddress(address: string): boolean;
    static isAddress(s: string): boolean;
    static isAddressValid(address: string): boolean;
    static isValidAddressFormat(s: any): boolean;
    static normalizeAddress(address: string): string;
}
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