Could we change the default value of experiments to `[]`? Then:
```python
if not 'beam_fn_api' in self._options.view_as(DebugOptions).experiments:
self._options.view_as(DebugOptions).experiments.append('beam_fn_api')
```[ Full content available at: https://github.com/apache/beam/pull/6512 ] This message was relayed via gitbox.apache.org for [email protected]
