(self, X, missing_mask)
return X
Since X is given to us already filled, just return it.
Since X is given to us already filled, just return it.
Since X is given to us already filled just return it .
def solve(self, X, missing_mask):
        """
        Since X is given to us already filled, just return it.
        """
        return X
def solve ( self , X , missing_mask ) : return X