playbackStatusUpdate(playbackObject)(onPlaybackStatusUpdate);

vi este código de un proyecto que bifurqué de Github, y estoy confundido con la sintaxis, ¿qué significa?

a continuación se muestra el código completo

 export const playbackStatusUpdate = (playbackObject) => (next = (status) => console.log({ status })) => { if ("setOnPlaybackStatusUpdate" in playbackObject) { playbackObject.setOnPlaybackStatusUpdate(next); } }; export const play = (playbackObject, uri, shouldPlay = true) => (next = () => {}) => (onPlaybackStatusUpdate = () => {}) => { (async () => { try { const checkLoading = await sound.current.getStatusAsync(); const soundObj = await playbackObject?.loadAsync( { uri }, { shouldPlay } ); playbackStatusUpdate(playbackObject)(onPlaybackStatusUpdate); next(soundObj); } catch (error) { console.log(`[Audio Error][play]: ${error?.message}`); } })(); };