human
Solve the following python programming problem given the following code:
def test_on_error_resume_next_start_with_factory(self) : 
    scheduler = TestScheduler () 
    msgs1 = [on_next (150, 1), on_next (210, 2), on_next (220, 3), on_error (230, 'ex')] 
    o1 = scheduler.create_hot_observable (self) 
    def factory(ex) : 
        assert (ex == 'ex') 
        msgs2 = [on_next (240, 4), on_completed (250)] 
        o2 = scheduler.create_hot_observable (msgs2) 
        return o2 
def create() : 
        return Observable.on_error_resume_next (o1, factory) 
results = scheduler.start (create) 
    results.messages.assert_equal (on_next (210, 2), on_next (220, 3), on_next (240, 4), on_completed (250)) 

    
    

    Fix the buggy line: o1 = scheduler.create_hot_observable (self)
assistant
#Here is Python program to fix the buggy line: o1 = scheduler.

o1 = scheduler.create_hot_observable (msgs1)