strain property
Strain is what this scope's ceilings are doing: "clear" below them, "full" at them, "refuse" once a caller has been turned away inside this window — which means that caller is UNMEASURED and the numbers here are a sample rather than a census. It is reported rather than logged because the alternative — a bound that degrades a scope silently — is the failure this design exists to rule out. No other scope can move it.
Please note: This property should have been non-nullable! Since the specification file does not include a default value (using the "default:" property), however, the generated source code must fall back to having a nullable type. Consider adding a "default:" property in the specification file to hide this note.
Implementation
String? strain;