export declare class Guid {
    private static readonly patternV4;
    private static readonly emptyStr;
    private static readonly MAX_UINT_8;
    private contentStr?;
    private contentInt?;
    private readonly DASH;
    private readonly DASH_REGEXP;
    /**
     * Creates a new Guid object using a string, if no string is provided (or the string is not valid),
     * the Guid value will be initialized with all zeroes (empty Guid).
     *
     * @param str is the string to use to initialize the Guid object. If its not valid an empty GUID string will be used.
     */
    constructor(str?: string);
    /**
     * Returns a new Guid object with an all zeroes internal value.
     *
     * @returns new Guid object with an internal value with all zeroes (an empty GUID, non valid).
     */
    static empty(): Guid;
    /**
     * Returns a Guid object with a random valid UUID v4 value.
     * The method allows the use of a custom random value generator that implements the Crypto API.
     * The internal guid value is generated using the provided generator (if any), if not provided, it attempts
     * to generate random values from the Crypto API of the browser. If the browser does not support the Crypto API,
     * Math.random() is used as a fallback to generate random values.
     *
     * @param generator? - Custom random values generator that implements the Crypto API.
     * @returns A new Guid object with a valid random value generated by the provided generator or the defaults.
     */
    static newGuid(generator?: Crypto): Guid;
    /**
     * Checks if a string represents a valid v4 GUID.
     *
     * @returns true if its a valid v4 GUID value represented as string.
     */
    static isValid(str: string): boolean;
    /**
     * Checks if the current internal value is a valid v4 GUID.
     *
     * @returns true if its a valid v4 GUID value.
     */
    isValid(): boolean;
    /**
     * Checks if the current internal value is empty (all zeroes value).
     *
     * @returns true if the object has an empty value.
     */
    isEmpty(): boolean;
    /**
     * Checks if the current Guid object is equal to the provided one.
     *
     * @param otherGuid represents the Guid object to compare to this one.
     * @returns true if this object value is equal to the provided one.
     */
    equals(otherGuid: Guid): boolean;
    /**
     * Returns the object value as string.
     *
     * @returns the string representing the Guid value.
     */
    toString(): string;
    /**
     * Returns the object value as number.
     *
     * @returns the hex number representing the Guid value.
     */
    toNumber(): number;
    /**
     * Attempts to get the number GUID value for the current object.
     *
     * @returns the hex number representing the Guid value or -1 if its value cannot be parsed.
     */
    private getNumberFromGuidString;
    /**
     * Generates a string with a valid GUID v4 value from a custom Crypto object or the defaults.
     *
     * @param generator? is the custom generator of values to use to generate the value.
     * @returns a valid GUID v4 value as a string.
     */
    private static generate;
    /**
     * Generates an Uint8Array with 16 random values generated using the crypto object provided or the defaults.
     *
     * @param generator is the Crypto implementation to use instead of the defaults.
     * @returns an Uint8Array with 16 random values.
     */
    private static generateRandomBytes;
    /**
     * Generates an Uint8Array with 16 random values generated using the crypto object provided.
     *
     * @param crypto is the Crypto implementation to use to generate the random values to fill the array.
     * @returns an Uint8Array with 16 random values.
     */
    private static getCryptoRandomBytes;
    /**
     * Generates an Uint8Array with 16 random values generated using the Math.random() method.
     *
     * @returns an Uint8Array with 16 random values.
     */
    private static getRandomBytes;
    /**
     * Sets the bytes of an Uint8Array to match the RFC definition of v4 GUIDs.
     *
     * @param arr is the array to be modified.
     */
    private static setSpecialBytesForV4Guid;
    /**
     * Returns the Crypto object that implements the Crypto API from the browser.
     *
     * @returns Crypto object from the browser implementation.
     */
    private static getCryptoImplementation;
}