import 'colors';
import { PasswordGeneratorOptions, GeneratedPassword } from './password_generator.interface';
export declare class PasswordGenerator {
    options: PasswordGeneratorOptions;
    constructor(options?: PasswordGeneratorOptions);
    /**
     * Checks if a password string contains at least one character from a string
     * array.
     */
    private containsFromCharset;
    /**
     * Count how many charsets are being used in the current configuration.
     */
    countActiveCharsets(): number;
    /**
     * Returns the password length, taking all parts and potential delimiters into
     * account.
     */
    get passwordLength(): number;
    /**
     * Generate a cryptographically more secure random number than Math.random().
     */
    random(): number;
    /**
     * Generates a password based on this.options. This method will recursively
     * call itself if the password does not contain at least one character from
     * each specified charset.
     */
    generate(): GeneratedPassword;
    /**
     * Generates any positive amount of passwords using this.generate().
     */
    generateMultiple(amount: number): GeneratedPassword[];
    /**
     * Interactively ask the user which password they would like if they ask for
     * more than 1. Also copies it to the clipboard.
     */
    interactive(amount: number, verbose?: boolean, noClipboard?: boolean): Promise<void>;
    /**
     * Log information about the security of the current password options.
     */
    private logInformation;
}