docs: def with_kwarg_count(self, count):
          """Set the last call to expect an exact count of keyword arguments.
  
          I.E.::
  
              >>> auth = Fake('auth').provides('login').with_kwarg_count(2)
              >>> auth.login(username='joe') # forgot password=
              Traceback (most recent call last):
              ...
              AssertionError: fake:auth.login() was called with 1 keyword arg(s) but expected 2
  
          """
          exp = self._get_current_call()
          exp.expected_kwarg_count = count
          return self