return {
  'kevinhwang91/nvim-ufo',
  config = function()
    vim.o.foldcolumn = '1' -- '0' is not bad
    vim.o.foldlevel = 99 -- Using ufo provider need a large value, feel free to decrease the value
    vim.o.foldlevelstart = 99
    vim.o.foldenable = true

    vim.o.fillchars = 'eob: ,fold: ,foldopen:,foldsep: ,foldclose:'
    local capabilities = vim.lsp.protocol.make_client_capabilities()
    capabilities.textDocument.foldingRange = {
      dynamicRegistration = false,
      lineFoldingOnly = true,
    }
    local language_servers = vim.lsp.get_clients() -- or list servers manually like {'gopls', 'clangd'}
    for _, ls in ipairs(language_servers) do
      require('lspconfig')[ls].setup {
        capabilities = capabilities,
        -- you can add other fields for setting up lsp server in this table
      }
    end
    require('ufo').setup {}
  end,

  dependencies = { 'kevinhwang91/promise-async' },
}