code: def components(self):
          
          if self._components is None:
              self.build(recursive=False)
          return self._components
docs: Returns full :class:`dict` of :class:`Component` instances, after
          a successful :meth:`build`
  
          :return: dict of named :class:`Component` instances
          :rtype: :class:`dict`
  
          For more information read about the :ref:`parts_assembly-build-cycle` .