Blink cursor for Nvim

blink_cursor.vim

func! ToggleCursor(timer)
  if &cursorcolumn
    set nocursorcolumn
  else
    set cursorcolumn
  endif

  if &cursorline
    set nocursorline
  else
    set cursorline
  endif
endfunc

function! RestoreCursor(timer) abort
  let &cursorcolumn = g:curcol
  let &cursorline = g:curline
endfunction

function! BlinkCursor() abort
  let g:curcol = &cursorcolumn
  let g:curline = &cursorline
  let timer1 = timer_start(100, 'ToggleCursor',
    \ {'repeat': 6})
  let timer2 = timer_start(1000, 'RestoreCursor')
endfunction

nnoremap <leader>cb :call BlinkCursor()<CR>