MeterFilter

One test on a signal's data. equals and notEquals compare a field's value with value as text, so 5 equals "5" and true equals "true"; notEquals also matches a signal without the field. exists matches a signal whose field is present and not null.

  • Dotted path to the field in the signal's data, such as model or usage.tier.

  • The test.

  • What equals and notEquals compare with. Required for them; left out for exists.