I have been successfully using the Google Maps API using the R package ggmap to find location coordinates for e.g. addresses or city names.
However, Google Maps now shows areas as well, indicating their extent with a transparent red polygon, e.g. when searching for "South Extension I, New Delhi", it shows the extent of this area/neigborhood (figure below).
The Google Maps API only seems to return the coordinates of the geometric center, and the viewport (rectangular) boundary coordinates (after zooming to the area extent): https://developers.google.com/maps/documentation/geocoding/intro
How can I obtain the coordinates of the vertices of the polygon which indicates the area/neighborhood?