ts-npm-ytmusic-api/docs/guides/usage/getPlaylist.md

Getting a playlist

getPlaylist() will fetch you information about a specific playlist by its ID.

ytmusic.getPlaylist("OLAK5uy_nRb467jR73IXKybwzw22_rTYIJ808x4Yc").then(playlist => {
	console.log(playlist)
})

See the reference for more information.