Has the worker open a document from an address through HTTP range requests (as OpenAsync(HttpClient, Uri, ViewerOptions?, CancellationToken)
does on the page) and returns the renderer a session opened from the same address uses, or null when the
worker is not running.
public static IRemoteTileRenderer? Open(Uri address, DisplayIntent intent)
The document's absolute address (the worker resolves nothing against the page).
The display intent the session renders with.
null.