Where to look, as either a point with an optional radius or a bounding box.
Remarks
You can't combine the two, because an endpoint applies exactly one geographic bias per request.
That is why they are a union rather than separate options.
Example
// Around a point, ranking bias only constnearAmsterdam: GeoBias = { position: [4.9, 52.3] };
// Around a point, confined to 2 km constwithin2km: GeoBias = { position: [4.9, 52.3], radiusMeters:2000 };
// Inside the visible map area constinViewport: GeoBias = { boundingBox:map.getBBox() };
Where to look, as either a point with an optional radius or a bounding box.