Range of apartments.
public init( start: String, end: String? = nil )
start
String
end
String?
var start
Deginning of range/Stored value. For now, only numerical values are possible, apartments with suffixes are not present in data yet.
var end
End of range. If absent, the range consists of a single start value. Otherwise it is an arithmetic progression from start to end in steps of 1.