requestMediaKeySystemAccess method Null safety
Implementation
Future<MediaKeySystemAccess> requestMediaKeySystemAccess(
String keySystem, List<Map> supportedConfigurations) =>
promiseToFuture<MediaKeySystemAccess>(JS(
"creates:MediaKeySystemAccess;",
"#.requestMediaKeySystemAccess(#, #)",
this,
keySystem,
supportedConfigurations));