Point the named tile sources at a persisted offline region.
Rewrites only sources[id].tiles[0], and only when that source is a
vector, raster, or raster-dem source whose single template is a plain
{z}/{x}/{y} address. Every other shape is refused; the caller decides
whether a refusal is fatal.
Point the named tile sources at a persisted offline region.
Rewrites only
sources[id].tiles[0], and only when that source is avector,raster, orraster-demsource whose single template is a plain{z}/{x}/{y}address. Every other shape is refused; the caller decides whether a refusal is fatal.