Pandas tseries offsets DateOffset
- [ ] closes #xxxx
- [ ] tests added / passed
- [ ] passes `black pandas`
- [ ] passes `git diff upstream/master -u -- "*.py" | flake8 --diff`
- [ ] whatsnew entry

input: python .\scripts\validate_docstrings.py pandas.tseries.offsets.DateOffset --errors=F821
output: Docstring for "pandas.tseries.offsets.DateOffset" correct. :)