return {
    'hrsh7th/nvim-cmp',
    dependencies = {
      'neovim/nvim-lspconfig',
      'L3MON4D3/LuaSnip',
      'hrsh7th/cmp-nvim-lsp',
      'hrsh7th/cmp-path',
      'hrsh7th/cmp-buffer',
      'hrsh7th/cmp-cmdline',
      'hrsh7th/nvim-cmp',
      'saadparwaiz1/cmp_luasnip',
      'hrsh7th/cmp-nvim-lsp-signature-help',
      'f3fora/cmp-spell',
    },
    config = function ()
      local cmp_status_ok, cmp = pcall(require, 'cmp')
      if not cmp_status_ok then
	return
      end

      local luasnip_status_ok, luasnip = pcall(require, 'luasnip')
      if not luasnip_status_ok then
	return
      end
      --cmp.setup {
	-- Load snippet support
	--snippet = {
	--  expand = function(args)
	--    luasnip.lsp_expand(args.body)
	 -- },

	-- Completion settings
	completion = {
	  --completeopt = 'menu,menuone,noselect'
	  keyword_length = 2
	}

	-- Key mapping
	mapping = {
	  ['<C-n>'] = cmp.mapping.select_next_item(),
	  ['<C-p>'] = cmp.mapping.select_prev_item(),
	  ['<C-d>'] = cmp.mapping.scroll_docs(-4),
	  ['<C-f>'] = cmp.mapping.scroll_docs(4),
	  ['<C-Space>'] = cmp.mapping.complete(),
	  ["<C-e>"] = cmp.mapping({
	  i = cmp.mapping.abort(),
	  c = cmp.mapping.close(),
	  }),
	  ["<C-y>"] = cmp.config.disable,
	  ['<CR>'] = cmp.mapping.confirm {
	    select = false,
	  },
	  -- Tab mapping
	  ['<Tab>'] = function(fallback)
	    if cmp.visible() then
	      cmp.select_next_item()
	    elseif luasnip.expand_or_jumpable() then
	      luasnip.expand_or_jump()
	    else
	      fallback()
	    end
	  end,
	  ['<S-Tab>'] = function(fallback)
	    if cmp.visible() then
	      cmp.select_prev_item()
	    elseif luasnip.jumpable(-1) then
	      luasnip.jump(-1)
	    else
	      fallback()
	    end
	  end
	}

	-- Load sources, see: https://github.com/topics/nvim-cmp
	sources = {
	  { name = 'nvim-lsp' },
	  { name = 'luasnip' },
	  { name = 'path' },
	  { name = 'buffer' },
	  { name = 'zsh' },
	}
    end
}