I can't get this to work
https://github.com/pandas-dev/pandas/blob/1ce1c3c1ef9894bf1ba79805f37514291f52a9da/pandas/core/frame.py#L6253-L6323

if I run the lines I get a syntax error with the ":" after column. If I try to import and test on a dataframe i get an error that .explode is not an attribute. :'(