code: def add_node_set_configuration(self, param_name, node_to_value):
          
          for nid, val in future.utils.iteritems(node_to_value):
              self.add_node_configuration(param_name, nid, val)
docs: Set Nodes parameter
  
          :param param_name: parameter identifier (as specified by the chosen model)
          :param node_to_value: dictionary mapping each node a parameter value