code: def from_schema(self, schema_node):
          
  
          params = []
  
          for param_schema in schema_node.children:
              location = param_schema.name
              if location is 'body':
                  name = param_schema.__class__.__name__
                  if name == 'body':
                      name = schema_node.__class__.__name__ + 'Body'
                  param = self.parameter_converter(location,
                                                   param_schema)
                  param['name'] = name
                  if self.ref:
                      param = self._ref(param)
                  params.append(param)
  
              elif location in (('path', 'header', 'headers', 'querystring', 'GET')):
                  for node_schema in param_schema.children:
                      param = self.parameter_converter(location, node_schema)
                      if self.ref:
                          param = self._ref(param)
                      params.append(param)
  
          return params
docs: Creates a list of Swagger params from a colander request schema.
  
          :param schema_node:
              Request schema to be transformed into Swagger.
          :param validators:
              Validators used in colander with the schema.
  
          :rtype: list
          :returns: List of Swagger parameters.