human
Solve the following python programming problem given the following code:
def _create_collection_loader(self, collections, local_cols) : 
    def load_collection_from_subq(state, dict_, row) : 
        collection = collections.get (tuple ([row [col] for col in local_cols]), ()) 
        state.get_impl (self.key).set_committed_value (state, dict_, collection) 
return (load_collection_from_subq, None, None, local_cols.loader) 

    
    

    Fix the buggy line: return (load_collection_from_subq, None, None, local_cols.loader)
assistant
#Here is Python code to fix the buggy line: return (load_collection_from_subq, None, None, local_cols.

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