/** Character classes for password generation */
export declare const CHARACTER_CLASSES: {
    lowercase: string;
    uppercase: string;
    digits: string;
    symbols: string;
    similar: string;
};
/** Normalized password options with all defaults applied */
export type PasswordOptions = {
    /** Length of the generated password. Default: 16 */
    length: number;
    /** Include lowercase letters. Default: true */
    lowercase: boolean;
    /** Include uppercase letters. Default: true */
    uppercase: boolean;
    /** Include digits. Default: true */
    digits: boolean;
    /** Include symbols. Default: true */
    symbols: boolean;
    /** Custom character set to include */
    custom: string;
    /** Exclude similar-looking characters (il1Lo0O). Default: false */
    excludeSimilar: boolean;
    /** Additional characters to exclude */
    exclude: string;
    /** Require at least one character from each selected class. Default: false */
    requireEachSelectedClass: boolean;
};
export type PasswordOptionsKeys = keyof PasswordOptions;
/** Default password options */
export declare const defaultOptions: PasswordOptions;
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