require'nvim-treesitter.configs'.setup {
  textobjects = {
    select = {
      enable = true,

      -- Automatically jump forward to textobj, similar to targets.vim
      lookahead = true,

      keymaps = {
        -- You can use the capture groups defined in textobjects.scm
        ["am"] = "@function.outer",
        ["im"] = "@function.inner",
        ["af"] = "@function.outer",
        ["if"] = "@function.inner",
        ["aC"] = "@class.outer",
        ["aa"] = "@parameter.outer",
        ["ia"] = "@parameter.inner",
        ["iq"] = "@block.inner",
        ["aq"] = "@block.outer",
        -- You can optionally set descriptions to the mappings (used in the desc parameter of
        -- nvim_buf_set_keymap) which plugins like which-key display
        ["iC"] = { query = "@class.inner", desc = "Select inner part of a class region" },
      },
      -- You can choose the select mode (default is charwise 'v')
      --
      -- Can also be a function which gets passed a table with the keys
      -- * query_string: eg '@function.inner'
      -- * method: eg 'v' or 'o'
      -- and should return the mode ('v', 'V', or '<c-v>') or a table
      -- mapping query_strings to modes.
      selection_modes = {
        ['@parameter.outer'] = 'v', -- charwise
        ['@function.outer'] = 'V', -- linewise
        ['@function.inner'] = 'V', -- linewise
      },
      -- If you set this to `true` (default is `false`) then any textobject is
      -- extended to include preceding or succeeding whitespace. Succeeding
      -- whitespace has priority in order to act similarly to eg the built-in
      -- `ap`.
      --
      -- Can also be a function which gets passed a table with the keys
      -- * query_string: eg '@function.inner'
      -- * selection_mode: eg 'v'
      -- and should return true of false
      include_surrounding_whitespace = function (q)
        return string.match(q.query_string, '.inner$') == nil and
                  string.match(q.query_string, '^function')
      end,
    },
  },
}