A personal preference of mine is to describe what the method does, not tell it what it does. Taken from the Google C++ style guide:

> These comments should be descriptive ("Opens the file") rather than imperative ("Open the file"); the comment describes the function, it does not tell the function what to do.

This is a minor issue and I'd argue a more subjective guideline than most. If you do change it, make sure you check all docstrings in the files you've worked on in addition to this one.