<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def _init_stub(self, stub_init, **stub_kwargs):
 """Initializes all other stubs for consistency's sake"""

        getattr(self.testbed, stub_init, lambda **kwargs: None)(**stub_kwargs)