google.maps.places.LocationBias
typedef
A LocationBias represents a soft boundary or hint to use when searching for Places. Results may come from outside the specified area. To use the current user's IP address as a bias, the string "IP_BIAS" can be specified. Note: if using a Circle the center and radius must be defined.
places
LatLng|LatLngLiteral|LatLngBounds|LatLngBoundsLiteral|Circle|CircleLiteral|string