docs: def store_meta_data(self, copy_path=None):
          """Store meta data of container states to the filesystem
  
          Recursively stores meta data of child states. For further insides read the description of also called respective
          super class method.
  
          :param str copy_path: Optional copy path if meta data is not stored to the file system path of state machine
          """
          super(ContainerStateModel, self).store_meta_data(copy_path)
          for state_key, state in self.states.items():
              state.store_meta_data(copy_path)