code: def ReadUserDefinedFunction(self, udf_link, options=None):
          
          if options is None:
              options = {}
  
          path = base.GetPathFromLink(udf_link)
          udf_id = base.GetResourceIdOrFullNameFromLink(udf_link)
          return self.Read(path, 'udfs', udf_id, None, options)
docs: Reads a user defined function.
  
          :param str udf_link:
              The link to the user defined function.
          :param dict options:
              The request options for the request.
  
          :return:
              The read UDF.
          :rtype:
              dict