Example of GetMultiple(Async) method on QueryFactory

[m4ss1m0g]

I see a method on QueryFactory named GetMultiple and the async variation GetMultipleAsync but there are no docs about them, on the source code I can see that it is a wrapper around the QueryMultiple of Dapper.

The method also has a generic T but it is not used, I successfully used the method by passing an int on the T.
var result = await _db.GetMultipleAsync<int>(new Query[] { query1, query2, query3}, cancellationToken: cancellationToken);

Otherwise, it raises an error.

The type arguments for method 'QueryFactory.GetMultiple(Query[], IDbTransaction, int?, CancellationToken)' cannot be inferred from the usage. Try specifying the type arguments explicitly.

Each query returns a complex object (not an int)

Is this the correct way to use the method?
There is another way to execute multiple queries in one single call to the DB?

Source code