text: """Keys' integer representation."""
  
  from eaf.meta import Singleton
  
  
  K_A = ord("a")
  K_D = ord("d")
  K_E = ord("e")
  K_F = ord("f")
  K_N = ord("n")
  K_R = ord("r")
  K_S = ord("s")
  K_Q = ord("q")
  K_W = ord("w")
  K_SPACE = ord(" ")
  K_ESCAPE = 27
  K_ENTER = 343
  
  
  class _KEY(metaclass=Singleton):
      """Convenient key container with dot access.
  
      K_KEYNAME can be accessed via KEY.KEYNAME.
      .. Attention:: this class relies to K_{KEYNAME} scheme.
                     No more than one underscore allowed.
      """
  
      KEY_PREFIX = "K_"
      """Prefix for all keys."""
  
      def __init__(self):
          for key, scancode in globals().items():
              if key.startswith(self.KEY_PREFIX):
                  self.__dict__[key.split("_")[1]] = scancode
  
  
  KEY = _KEY()
  """Key container object."""
  