Python copy-docstring decorator.

copy_docstring_decorator.py

from typing import Type
from functools import wraps

def copy_docstring(from_obj: Type):
    """
    Decorator.
    Copies the docstring from `from_obj` to this function or class.
    """

    @wraps(copy_docstring)
    def dec(myobj):
        myobj.__doc__ = from_obj.__doc__
        return myobj

    return dec