var usermusicjourney = musicapp.initiate(preparatorywork: ()=>{ console.writeline("gearing up for your musical journey!"); }, onlaunch: ()=>{ console.writeline("launch from the outset with excitement!"); }, onabandon: ()=>{ console.writeline("even if you decide to abandon, remember the melodies that moved you."); }, onnotice: (notices)=>{ console.writeline("keep an eye on notices for new features!"); }, bannedsongshandler: ()=>{ console.writeline("though some songs might be banned, there's a world of music out there for you to explore!"); });