[BUG] `vim.F.if_nil()` is deprecated in Neovim `>=v0.13`

[DrKJeff16]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

I'm using Neovim nightly. When using this plugin, running :checkhealth vim.deprecated, I get a deprecation warning related to vim.F.if_nil(), which is being deprecated for Neovim >=v0.13.

Expected Behavior

No deprecation warnings.

Steps To Reproduce

1. Open Neovim Nightly
2. Use Toggleterm
3. Run :checkhealth vim.deprecated

Environment

- OS: Arch Linux
- neovim version: v0.13.0-dev-923+g8dfe4d6629
- Shell: bash

Anything else?

Demonstration: