dmPolicy property
DMPolicy is how this org admits direct messages here: "pairing", "allowlist" or "open", defaulting to "pairing" when the org has never set one.
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? dmPolicy;