human
Solve the following python programming problem given the following code:
@ cu 
def rotate(x, a) : 
    def torus_index(i, a, b) : 
        return ((i + a) % b) 
def rotate_el(i) : 
        return x [torus_index (i, a, len (x))] 
return map (x, indices (x)) 

    
    

    Fix the buggy line: return map (x, indices (x))
assistant
#Here is Python program to fix the buggy line: return map (x, indices (x))
.

return map (def rotate_el(, indices (x))