@property<EOL><INDENT>def reference(self):<DEDENT>
return self._reference<EOL>
Returns the deprecated reference property.

The token can be used to retrieve additional information about this
place when invoking the getPlace method on an GooglePlaces instance.

You can store this token and use it at any time in future to refresh
cached data about this Place, but the same token is not guaranteed to
be returned for any given Place across different searches.

This property is deprecated:
https://developers.google.com/places/documentation/autocomplete#deprecation