| Name | Type | Description | Notes |
|---|---|---|---|
| key | string | ||
| name | string | [optional] | |
| radius | float | Radius around the city. Requires distanceUnit. Meta enforces a minimum city radius (~17 km / 10 mi); smaller values resolve to a 0-size audience and the ad fails at launch. For a tighter catchment use customLocations (lat/lng), which allows a smaller radius. | [optional] |
| distance_unit | string | Required if radius is set. | [optional] |