code: def nvrtcGetLoweredName(self, prog, name_expression):
          
          lowered_name = c_char_p()
          code = self._lib.nvrtcGetLoweredName(prog,
                                               c_char_p(encode_str(name_expression)),
                                               byref(lowered_name))
          self._throw_on_error(code)
          return lowered_name.value.decode('utf-8')
docs: Notes the given name expression denoting a __global__ function or
          function template instantiation.