return {
    'jose-elias-alvarez/null-ls.nvim',
    dependencies = {
 'nvim-lua/plenary.nvim',
      },
      config = function ()
 local null_ls = require'null-ls'
   null_ls.setup({
     debug = true,
     sources = {
       null_ls.builtins.completion.spell,
       null_ls.builtins.diagnostics.codespell,
       null_ls.builtins.diagnostics.markdownlint.with({ extra_args = { "--disable", "MD013", "MD024", "--" }
       ,}),
       null_ls.builtins.diagnostics.pycodestyle.with({ extra_args = { "--max-line-length=150" }}),
       null_ls.builtins.formatting.black.with({ extra_args = { "--fast" }}),
     },
   })
 end
}