Ensure that we are grabbing the correct scope.

def _ensure_scope(level, global_dict=None, local_dict=None, resolvers=(),
                  target=None, **kwargs):
    """Ensure that we are grabbing the correct scope."""
    return Scope(level + 1, global_dict=global_dict, local_dict=local_dict,
                 resolvers=resolvers, target=target)