Synthesis failed for deploymentmanager-alpha

[yoshi-automation]

Hello! Autosynth couldn't regenerate deploymentmanager-alpha. 💔

Please investigate and fix this issue within 5 business days. While it remains broken,
this library cannot be updated with changes to the deploymentmanager-alpha API, and the library grows
stale.

See https://github.com/googleapis/synthtool/blob/master/autosynth/TroubleShooting.md
for trouble shooting tips.

Here's the output from running synth.py:

2021-09-20 03:15:01,373 autosynth [ERROR] > Error parsing response json: Expecting value: line 1 column 1 (char 0)
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 359, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 191, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 235, in _inner_main
    default_branch = gh.get_default_branch(args.repository)
  File "/tmpfs/src/github/synthtool/autosynth/github.py", line 57, in get_default_branch
    data = _get_json_or_raise_exception(response)
  File "/tmpfs/src/github/synthtool/autosynth/github.py", line 500, in _get_json_or_raise_exception
    json = response.json()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/requests/models.py", line 910, in json
    return complexjson.loads(self.text, **kwargs)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/json/__init__.py", line 354, in loads
    return _default_decoder.decode(s)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/json/decoder.py", line 339, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/json/decoder.py", line 357, in raw_decode
    raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

Google internal developers can see the full log here.

[yoshi-automation]

Autosynth passed, closing! 💚