code: def get_child_by_name(self, inst_name):
          
          child_inst = self.inst.get_child_by_name(inst_name)
          if child_inst is None:
              return None
          return Node._factory(child_inst, self.env, self)
docs: Returns an immediate child :class:`~Node` whose instance name matches ``inst_name``
  
          Returns ``None`` if ``inst_name`` does not match
  
          Parameters
          ----------
          inst_name: str
              Name of immediate child to get
  
          Returns
          -------
          :class:`~Node` or None
              Child Node. None if not found.