How to change BPM value of Spotify Song Swift

Question

I am trying to build an application that plays Spotify songs. I am really confused about how to change BPM(Beats Per Minute,) value of Spotify songs.

First Step: Login through Spotify.

Second Step: Get Current user all album.

Third Step: get album track.

Last Step: play track.

I have done All step with Spotify Delegates. but I want to change the BPM value of the track.

Can someone please explain to me how to change the BPM value?