return {
  'Vigemus/iron.nvim',
  branch = 'master',
  config = function()
    local iron = require('iron.core')

    iron.setup({
      config = {
        -- Whether a repl should be discarded or not
        scratch_repl = true,
        -- Your repl definitions come here
        repl_definition = {
          sh = {
            -- Can be a table or a function that
            -- returns a table (see below)
            command = { 'zsh' },
          },
          python = {
            command = { 'python3' }, -- or { "ipython", "--no-autoindent" }
            format = require('iron.fts.common').bracketed_paste_python,
          },
        },
        -- How the repl window will be displayed
        -- See below for more information
        repl_open_cmd = require('iron.view').split.vertical('50%'),
      },
      -- Iron doesn't set keymaps by default anymore.
      -- You can set them here or manually add keymaps to the functions in iron.core
      keymaps = {
        send_motion = '<space>sc',
        visual_send = '<space>sc',
        send_file = '<space>sf',
        send_line = '<space>sl',
        send_paragraph = '<space>sp',
        send_until_cursor = '<space>su',
        send_mark = '<space>sm',
        mark_motion = '<space>mc',
        mark_visual = '<space>mc',
        remove_mark = '<space>md',
        cr = '<space>s<cr>',
        interrupt = '<space>s<space>',
        exit = '<space>sq',
        clear = '<space>cl',
      },
      -- If the highlight is on, you can change how it looks
      -- For the available options, check nvim_set_hl
      highlight = {
        italic = true,
      },
      ignore_blank_lines = true, -- ignore blank lines when sending visual select lines
    })

    -- iron also has a list of commands, see :h iron-commands for all available commands
  end,
  cmd = {
    'IronRepl',
    'IronRestart',
    'IronFocus',
    'IronHide',
    'IronRepl',
    'IronReplHere',
  },
}