Vim sneak label doesn't work?

Hi, i am using vim and vim-sneak plugin. 
But label mode from vim-sneak documentation don't work. 
https://github.com/justinmk/vim-sneak 

let g:sneak#label = 1

I know that this plugin was maded by your developer, but he don't respond in comments. 
https://plugins.jetbrains.com/plugin/15348-ideavim-sneak 

Thanks for phpstorm and for vim.

I wish, you will help me.