return {
  {
    "neovim/nvim-lspconfig",
    config = function ()
    end
  },
  {
    'williamboman/nvim-lsp-installer',
    config = function ()
      local lsp_installer = require "nvim-lsp-installer"

      -- 安装列表
      -- https://github.com/williamboman/nvim-lsp-installer#available-lsps
      -- { key: 语言 value: 配置文件 }
      local servers = {
        sumneko_lua = require "lsp.lua", -- /lua/lsp/lua.lua
      }

      -- 自动安装 LanguageServers
      for name, _ in pairs(servers) do
        local server_is_found, server = lsp_installer.get_server(name)
        if server_is_found then
          if not server:is_installed() then
            print("Installing " .. name)
            server:install()
          end
        end
      end
    end
  },
  {
    'hrsh7th/cmp-nvim-lsp', -- { name = 'nvim_lua' }
    'hrsh7th/cmp-buffer',   -- { name = 'buffer' },
    'hrsh7th/cmp-path',     -- { name = 'path' }
    'hrsh7th/cmp-cmdline',  -- { name = 'cmdline' }
    'onsails/lspkind-nvim',
    {
      "hrsh7th/nvim-cmp",
      config = function() 
        local cmp     = require('cmp')
        -- local lspkind = require('lspkind')
        cmp.setup {
          sources = cmp.config.sources({
            { name = 'nvim_lsp' },
            { name = 'buffer' },
            { name = 'path' },
            { name = 'cmdline' },
          }),

        }
      end,
  }
 }
}