Fix pre-commit issues

7 jobs for add-process-method-for-mcmc in 2 minutes and 53 seconds (queued for 7 seconds)
latest
Status Job ID Name Coverage
  Test
passed documentation #1444541

00:02:51

passed example-ini-file-builds #1444537

00:01:44

passed injection-regression-test #1444538

00:02:11

passed precommits-py3.7 #1444535

00:02:04

passed python-3.6 #1444540

00:02:08

passed python-3.7 #1444536

00:02:08

67.0%
passed review-test-build #1444539

00:01:36