2001-0257-Docstring-Conventions
https://peps.python.org/pep-0257/ https://docs.python.org/3/tutorial/controlflow.html#documentation-strings
Handling Docstring Indentation
Docstring processing tools will strip a uniform amount of indentation from the second and further lines of the docstring, equal to the minimum indentation of all non-blank lines after the first line. Any indentation in the first line of the docstring (i.e., up to the first newline) is insignificant and removed. Relative indentation of later lines in the docstring is retained. Blank lines should be removed from the beginning and end of the docstring.