human
Solve the following python programming problem given the following code:
@ unittest.expectedFailure 
def test_like_structured(self) : 
    dtype = np.dtype ([('a', np.int16), ('b', np.float32)]) 
    def func(arr) : 
        return np.full_like (arr, 4.5) 
self.check_like (func, self) 

    
    

    Fix the buggy line: self.check_like (func, self)
assistant
#Here is Python program to fix the buggy line: self.

self.check_like (func, dtype)