lastPostalCode property
A postal code or a pattern of the form prefix* denoting the inclusive upper bound of the range defining the area (for example [070* - 078*] results in the range [07000 - 07899]).
It must have the same length as firstPostalCode: if firstPostalCode is
a postal code then lastPostalCode must be a postal code too; if
firstPostalCode is a pattern then lastPostalCode must be a pattern with
the same prefix length. Ignored if not set, then the area is defined as
being all the postal codes matching firstPostalCode.
Implementation
core.String? lastPostalCode;