code: def load(self, filepath):
          
          try:
              self._config.read(filepath)
              self.long_running_operation_timeout = self._config.getint(
                  "Azure", "long_running_operation_timeout")
          except (ValueError, EnvironmentError, NoOptionError):
              msg = "Supplied config file incompatible"
              raise_with_traceback(ValueError, msg)
          finally:
              self._clear_config()
          return super(AzureConfiguration, self).load(filepath)
docs: Load configuration from existing file.
  
          :param str filepath: Path to existing config file.
          :raises: ValueError if supplied config file is invalid.