funcs_kwargs doesn't update class signature when inheriting from Module

[lgvaz]

Using funcs_kwargs with a class that inherits from Module does not update the class signature.

Minimum example:

from fastai2.basics import *

@funcs_kwargs
class C(Module):
  _methods = ['m1']
  def __init__(self, **kwargs): pass
  def m1(self): return 1

print(inspect.signature(C))

Returns: (self, **kwargs)
Expected: (*, m1=None)

[sgugger]

Thanks for flagging! Should be fixed now.