Source
ShadowRoot createShadowRoot([Map shadowRootInitDict]) {
if (shadowRootInitDict == null) {
return wrap_jso(_blink.BlinkElement.instance.createShadowRoot_Callback_0_(unwrap_jso(this)));
}
if ((shadowRootInitDict is Map)) {
return wrap_jso(_blink.BlinkElement.instance.createShadowRoot_Callback_1_(unwrap_jso(this), convertDartToNative_Dictionary(shadowRootInitDict)));
}
throw new ArgumentError("Incorrect number or type of arguments");
}