can nobody write this program in xcode/swift language?

the most examples on the documentation do not work. some libraries like visionos 8gb are to download. do i need them for using my func? i have on no website found a listing of the func and their names with parameters and type-info, which i need written above. can somebody write in swift this: //which libraries? a=5*sin(33) if a>2 { openwindow(x,y,width,height) while mouseleft=false { if keyboard=down { if keyboard="A" draw full-rectangle(x,y,width, height,color 40C080)} if mouse-x>400 {draw text(x,y,color ff8080,"hello",size 16, font arial)} } closewindow-complete(?) } a=3*sin(55)

i have listed the func i am interested in. is there no standard library from apple to use? from where i could receive this informations?