BUG: incorrect type hint for subset in dropna

[stevenlis]

Describe the bug

dropna() should accept any array like object.

To Reproduce
pylance in vscode

import pandas as pd
data = {'col1': [1, 3, 4], 'col2': [2, 3, 5], 'col2': [2, 4, 4]}
df = pd.DataFrame(data)

df.dropna(subset=df.columns.drop('col1'))

Please complete the following information:

• OS: [MacOS]
• OS Version [e.g. 13]
• python version 3.9.12
• version of type checker ?
• version of installed pandas-stubs ?

Additional context
OP: pandas-dev/pandas#49702

[Dr-Irv]

Have to change the subset argument for the 4 overloads in core/frame.pyi from list | None to ListLikeU | Scalar | None since you can pass Index, Series, np.ndarray, any Sequence, as well as individual scalars.

PR and tests welcome.

[shubhankarunhale]

Hi @Dr-Irv , I was hoping to get started with this as a first contribution, can I work on this?
Also I don't understand what you meant by "LikeLikeU" in the suggested changes

[Dr-Irv]

Hi @Dr-Irv , I was hoping to get started with this as a first contribution, can I work on this? Also I don't understand what you meant by "LikeLikeU" in the suggested changes

Sorry that was a typo. Meant ListLikeU. Will fix in the comment above.