transactionCreator function
transaction creator function to apply the control
If the control
is not given then it will omit when begin transaction and the default behavior
is depend on how SQLite engine to determine. It suppose to be one of SQLiteTransactionControl.
More information see https://www.sqlite.org/lang_transaction.html
Implementation
sql.TransactionCreator<Transaction> transactionCreator([SQLiteTransactionControl? control]) =>
((sql.Database db) => Transaction._(db as Database, control));