human
Solve the following python programming problem given the following code:
def pytest_funcarg__monty_bbn(request) : 
    def f_prize_door(prize_door) : 
        return (1.0 / 3) 
def f_guest_door(guest_door) : 
        return (1.0 / 3) 
def f_monty_door(prize_door, guest_door, monty_door) : 
        if (prize_door == guest_door) : 
            if (prize_door == monty_door) : 
                return 0 
else : 
                return 0.5 
else : 
            if (prize_door == monty_door) : 
                return 0 
else : 
                if (guest_door == monty_door) : 
                    return 0 
return 1 
g = build_bbn (f_prize_door, f_guest_door, g, domains = dict (prize_door = ['A', 'B', 'C'], guest_door = ['A', 'B', 'C'], monty_door = ['A', 'B', 'C'])) 
    return g 

    
    

    Fix the buggy line: g = build_bbn (f_prize_door, f_guest_door, g, domains = dict (prize_door = ['A', 'B', 'C'], guest_door = ['A', 'B', 'C'], monty_door = ['A', 'B', 'C']))
assistant
#Here is Python code to fix the buggy line: g = build_bbn (f_prize_door, f_guest_door, g, domains = dict (prize_door = ['A', 'B', 'C'], guest_door = ['A', 'B', 'C'], monty_door = ['A', 'B', 'C']))
.

g = build_bbn (f_prize_door, f_guest_door, def f_monty_door(, domains = dict (prize_door = ['A', 'B', 'C'], guest_door = ['A', 'B', 'C'], monty_door = ['A', 'B', 'C']))