let g:fzf_action = {
\ 'ctrl-t': 'tab split',
\ 'ctrl-x': 'split',
\ 'ctrl-v': 'vsplit',
\ }
let opts = fzf#vim#with_preview().options + [
\ '--expect='.join(keys(fzf_action), ','),
\ ]
let g:LanguageClient_fzfOptions = opts