mutation method
Execute a Mutation from a Document
Implementation
Future mutation(
String document, {
Map<String, dynamic>? variables,
bool tryAgain = true,
String? key,
Map<String, String>? headers,
}) async {
final _key = key ?? _keyGenerator.randomString(15);
return executeMutation(
Query(
key: _key,
headers: headers,
document: document.trimLeft(),
variables: variables,
),
);
}