c3 creates invalid kfp yaml

[romeokienzler]

- {name: start_date, type: String, description: "temporal bounding start", default: '2020-02-01') # YYYY-MM-DD}
- {name: end_date, type: String, description: "temporal bounding end", default: '2020-03-31')  # YYYY-MM-DD}

using source:

# temporal bounding start
start_date = os.environ.get('start_date','2020-02-01') # YYYY-MM-DD

# temporal bounding end
end_date = os.environ.get('end_date','2020-03-31')  # YYYY-MM-DD

[blumenstiel]

fixed in pr #21