A MapLibre source handle as returned by map.getSource(). The hillshade
builder reads the optional tiles array to decide whether the existing
terrain-dem source can be reused for the hillshade layer.
The specification the source was added with. The terrain module compares it to the one a
basemap asks for: tiles above is only set once the engine has loaded the source.
A MapLibre source handle as returned by
map.getSource(). The hillshade builder reads the optionaltilesarray to decide whether the existingterrain-demsource can be reused for the hillshade layer.