text: # Pyrogram - Telegram MTProto API Client Library for Python
  # Copyright (C) 2017-2018 Dan Tès <https://github.com/delivrance>
  #
  # This file is part of Pyrogram.
  #
  # Pyrogram is free software: you can redistribute it and/or modify
  # it under the terms of the GNU Lesser General Public License as published
  # by the Free Software Foundation, either version 3 of the License, or
  # (at your option) any later version.
  #
  # Pyrogram is distributed in the hope that it will be useful,
  # but WITHOUT ANY WARRANTY; without even the implied warranty of
  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  # GNU Lesser General Public License for more details.
  #
  # You should have received a copy of the GNU Lesser General Public License
  # along with Pyrogram.  If not, see <http://www.gnu.org/licenses/>.
  
  from threading import Lock
  from time import time
  
  
  class MsgId:
      last_time = 0
      offset = 0
      lock = Lock()
  
      def __new__(cls) -> int:
          with cls.lock:
              now = time()
              cls.offset = cls.offset + 4 if now == cls.last_time else 0
              msg_id = int(now * 2 ** 32) + cls.offset
              cls.last_time = now
  
              return msg_id
  