query<T> method Null safety

Future<GraphQLResponse<T>> query<T>(
  1. String query,
  2. {String? url,
  3. Map<String, dynamic>? variables,
  4. Map<String, String>? headers}
)

Implementation

Future<GraphQLResponse<T>> query<T>(
  String query, {
  String? url,
  Map<String, dynamic>? variables,
  Map<String, String>? headers,
});