insertMany method
Implementation
Future<void> insertMany(List<Map<String, dynamic>> rows) async {
this._db!.transaction((txn) async {
List<Future> futs = [];
for (var i = 0; i < rows.length; i++) {
futs.add(txn.insert(this._table!, rows[i]));
}
await Future.wait(futs);
});
}