def _build_query(*queries: Union[QueryExpression, Dict, bool]) -> QueryExpression:
if len(queries) == 0:
return QueryExpression()
for query in queries:
if isinstance(query, bool):
raise TypeError("cannot build query using booleans")
queries = cast(Tuple[Union[QueryExpression, Dict], ...], queries)
if len(queries) == 1:
return QueryExpression(queries[0])
return and_(*queries)
def test_query_empty_repr():
assert repr(QueryExpression()) == "QueryExpression()"