code: def type_alias(self):
      
      type_alias = self._kwargs.get(self._TYPE_ALIAS_FIELD, None)
      return type_alias if type_alias is not None else type(self).__name__
docs: Return the type alias this target was constructed via.
  
      For a target read from a BUILD file, this will be target alias, like 'java_library'.
      For a target constructed in memory, this will be the simple class name, like 'JavaLibrary'.
  
      The end result is that the type alias should be the most natural way to refer to this target's
      type to the author of the target instance.
  
      :rtype: string