Dashboard FilterVariable option with_preferred_suggestions() doesn't seem to work

[tlisonbee]

This is low priority because it isn't a super important feature but when I tried using it, this feature didn't seem to work.

E.g.

Dashboard() \
        .with_name(name) \
        .with_charts(*charts) \
        .with_filters(
        DashboardFilters() \
            .with_variables(
            FilterVariable() \
                .with_property("aws_account_id")
                .with_alias("aws_account_id")
                .with_value(aws_account_id)
                .with_preferred_suggestions([aws_account_id])
                .with_apply_if_exists(True))