code: def _in_version(self, *versions):
          "Returns true if this frame is in any of the specified versions of ID3."
          for version in versions:
              if (self._version == version
                  or (isinstance(self._version, collections.Container) 
                      and version in self._version)):
                  return True
          return Falsf _in_version(self, *versions):
          "Returns true if this frame is in any of the specified versions of ID3."
          for version in versions:
              if (self._version == version
                  or (isinstance(self._version, collections.Container) 
                      and version in self._version)):
                  return True
          return False
docs: Returns true if this frame is in any of the specified versions of ID3.