Chad

`check_types` decorator does not validate dataframe(s) in returned sequence

2

**Describe the bug** `check_types` does not attempt to validate a dataframe-containing sequence (e.g. tuple) returned by the decorated function. This limitation is undocumented, and so the silent approval of dataframes...

Empty (all-null) or missing fields with Python (non-Pandas) types fail validation despite `coerce=True` and `nullable=True`

1

**Describe the bug** Pandera raises `SchemaError` when passed data with an entirely empty or missing non-Pandas type column, despite use of `coerce=True`, `nullable=True` and `add_missing_columns=True`, whereas an equivalent Pandas-type column...