code: def from_schema(self, schema_node, base_name=None):
          
          return self._ref_recursive(self.type_converter(schema_node), self.ref, base_name)
docs: Creates a Swagger definition from a colander schema.
  
          :param schema_node:
              Colander schema to be transformed into a Swagger definition.
          :param base_name:
              Schema alternative title.
  
          :rtype: dict
          :returns: Swagger schema.