Consider not deprecating save_virtual_workbook
Created originally on Bitbucket by pquentin (Quentin Pradet)
We’re heavy users of save_virtual_workbook because it’s a very convenient way to create workbooks in our integration tests. However, it’s deprecated and issues many warnings in our test suite. The deprecation notice suggests using a NamedTemporaryFile instead, however the implementation is more complicated than that, as you can see in https://openpyxl.readthedocs.io/en/stable/_modules/openpyxl/writer/excel.html#save_virtual_workbook.
Can you consider not deprecating this useful utility?
Thank you for openpyxl!