code: def add_edge_configuration(self, param_name, edge, param_value):
          
          if param_name not in self.config['edges']:
              self.config['edges'][param_name] = {edge: param_value}
          else:
              self.config['edges'][param_name][edge] = param_value
docs: Set a parameter for a given edge
  
          :param param_name: parameter identifier (as specified by the chosen model)
          :param edge: edge identifier
          :param param_value: parameter value