On https://www.bitrise.io/integrations/steps/flutter code snippet in description looks like this:
However, in workflow editor:
Great catch! Thanks a lot for your report, we have taken not and will be replying here once the issue is addressed 
On https://www.bitrise.io/integrations/steps/flutter code snippet in description looks like this:
However, in workflow editor:
Great catch! Thanks a lot for your report, we have taken not and will be replying here once the issue is addressed