export interface AddressValidator {
    isValid(address: string): boolean;
    normalize?(address: string): string;
    getPrefix?(address: string): string | undefined;
}
export declare class EthereumAddressValidator implements AddressValidator {
    private toEIP55Checksum;
    isValid(address: string): boolean;
    normalize(address: string): string;
    getPrefix(address: string): string | undefined;
}
export declare class Bech32AddressValidator implements AddressValidator {
    private expectedPrefix?;
    constructor(expectedPrefix?: string);
    isValid(address: string): boolean;
    normalize(address: string): string;
    getPrefix(address: string): string | undefined;
}