human
Solve the following python programming problem given the following code:
def _create_scalar_loader(self, collections, local_cols) : 
    def load_scalar_from_subq(state, dict_, row) : 
        collection = collections.get (tuple ([row [col] for col in local_cols]), (None,)) 
        if (len (collection) > 1) : 
            util.warn (("Multiple rows returned with uselist=False for eagerly-loaded attribute '%s' " % self)) 
scalar = collection [0] 
        state.get_impl (self.key).set_committed_value (state, dict_, scalar) 
return (load_scalar_from_subq, None, None, self.loader) 

    
    

    Fix the buggy line: return (load_scalar_from_subq, None, None, self.loader)
assistant
#Here is Python program to fix the buggy line: return (load_scalar_from_subq, None, None, self.

return (load_scalar_from_subq, None, None, collections.loader)