wrap_text with openpyxl. How to use documentation to resolve deprecation warning?

[buran]

I am trying to understand how you knew to look there.

simply by reading the warning:
Use copy(obj) or cell.obj = cell.obj + other)

if you are still uncertain you can look also at the docs and source code
https://openpyxl.readthedocs.io/en/stabl...Proxy.copy
https://openpyxl.readthedocs.io/en/stabl...StyleProxy

in the source you can see copy() method is more or less wrapper around copy.copy()