type property
Type is what kind of number it is: "local", "national", "tollfree" or "mobile". It decides both price and what a carrier will let it originate.
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? type;