How i can use queryType with only label?

[b0kky]

Hello! Could you answer me how i can use queryTypes.withLabelValues(label, metric), without metric? As i see in doc (fn query.queryTypes.withLabelValues have 2 required fileds: label and metric, but in grafana variables metric may be a option value.
My code is:

///
    + var.query.queryTypes.withLabelValues(
      'label',
      '',
///

after build via jsonnet become like this:
"query": "label_values(, label)",
and Grafana couldn't use it correctly, at variable interface i see this

[b0kky]

Colleagues? may it looks like a bug?

[Duologic]

This was indeed a bug, resolved in #108