Creating a PlayableAsset from Code

I've been writing a tool to help with authoring and previewing Timeline Sequences. I wanted to add a quick way of creating a PlayableAsset for blank fields so I added a button using a Custom Property Drawer.

The issue is that despite PlayableAsset extending from ScriptableObject I can't seem to instantiate it like other Scriptable Objects.

Code (CSharp):

1. string filePath = EditorUtility.SaveFilePanelInProject("Create Playable Asset", property.serializedObject.targetObject.name, "playable", "Where do you want to create this timeline playable?", "Assets/Data/Playables");
2. PlayableAsset newPlayableAsset = ScriptableObject.CreateInstance<PlayableAsset>();
3. string fileName = Path.GetFileNameWithoutExtension(filePath);
4. newPlayableAsset.name = fileName;
5. AssetDatabase.CreateAsset(newPlayableAsset, filePath);

Normally this would instantiate a ScriptableObject in memory and then save it to the filepath but the result of ScriptableObject.CreateInstance is null. Is there a special API for creating these assets?

 

Ah I see. Is TimelineAsset the one I want that would be the same as the Create menu?

Edit: Yeah TimelineAsset was the one I needed.