old_contents: # -*- coding: utf-8 -*-
  from mahjong.tile import TilesConverter
  
  
  class Meld(object):
      CHI = 'chi'
      PON = 'pon'
      KAN = 'kan'
      CHANKAN = 'chankan'
      NUKI = 'nuki'
  
      who = None
      tiles = None
      type = None
      from_who = None
      called_tile = None
      # we need it to distinguish opened and closed kan
      opened = True
  
      def __init__(self, meld_type=None, tiles=None, opened=True, called_tile=None, who=None, from_who=None):
          self.type = meld_type
          self.tiles = tiles
          self.opened = opened
          self.called_tile = called_tile
          self.who = who
          self.from_who = from_who
  
      def __str__(self):
          return 'Type: {}, Tiles: {} {}'.format(self.type, TilesConverter.to_one_line_string(self.tiles), self.tiles)
  
      # for calls in array
      def __repr__(self):
          return self.__str__()
  
      @property
      def tiles_34(self):
          return [x // 4 for x in self.tiles[:3]]
  
new_contents: # -*- coding: utf-8 -*-
  from mahjong.tile import TilesConverter
  
  
  class Meld(object):
      CHI = 'chi'
      PON = 'pon'
      KAN = 'kan'
      CHANKAN = 'chankan'
      NUKI = 'nuki'
  
      who = None
      tiles = None
      type = None
      from_who = None
      called_tile = None
      # we need it to distinguish opened and closed kan
      opened = True
  
      def __init__(self, meld_type=None, tiles=None, opened=True, called_tile=None, who=None, from_who=None):
          self.type = meld_type
          self.tiles = tiles or []
          self.opened = opened
          self.called_tile = called_tile
          self.who = who
          self.from_who = from_who
  
      def __str__(self):
          return 'Type: {}, Tiles: {} {}'.format(self.type, TilesConverter.to_one_line_string(self.tiles), self.tiles)
  
      # for calls in array
      def __repr__(self):
          return self.__str__()
  
      @property
      def tiles_34(self):
          return [x // 4 for x in self.tiles[:3]]
  
subject: Initialize empty tiles array for Meld object