(self)
Enter the watcher's context and allow starting new processes

        This function must return self
Enter the watcher's context and allow starting new processes
Enter the watcher s context and allow starting new processes
def __enter__(self):
        """Enter the watcher's context and allow starting new processes

        This function must return self"""
        raise NotImplementedError()
def __enter__ ( self ) : raise NotImplementedError ( )