open static method
Implementation
static Future<UCachedByteSource> open({String? path, String? url, Uint8List? bytes, String? asset, Object? blob, Map<String, String>? headers, int cacheBytes = uDocSourceCacheBytes}) async {
final UDocByteSource source = await _resolve(path: path, url: url, bytes: bytes, asset: asset, blob: blob, headers: headers);
return UCachedByteSource(source, maxBytes: cacheBytes);
}