/// <summary>
/// Compares two instances of this object.
/// </summary>
/// <param name="UserId1">An user identification.</param>
/// <param name="UserId2">Another user identification.</param>
/// <returns>true|false</returns>
public static Boolean operator >=(User_Id UserId1,
User_Id UserId2)
=> UserId1.CompareTo(UserId2) >= 0;
/// <summary>
/// Compares two instances of this object.
/// </summary>
/// <param name="UserId1">An user identification.</param>
/// <param name="UserId2">Another user identification.</param>
/// <returns>true|false</returns>
public static Boolean operator !=(User_Id UserId1,
User_Id UserId2)
=> !UserId1.Equals(UserId2);
