Retrieving Default Podcast Feed

How do I get the default feed of the podcast.

I have tried using the template tags and the PHP variant to no avail:

podcast.feeds
podcast.feed

and

$feed = Feed::find_one_by_slug(“mp3”); returns null

and this returns a single empty array:

$test = \Podlove\get_podcast();

$feed = $test->feeds();

[“podcast_feed”]=> array(1) { [0]=> array(0) { } }

this blows up:

$podcast->feed();

Tried looking for a feed REST API call, no joy.

I get nothing but null or a crash on undefined.

thx