bug#62536: 30.0.50; Can we add """ ... """ electric pair in elixir, just like python

[Eli Zaretskii]

> From: 牟 桐 <mou.tong@outlook.com>
> Date: Thu, 30 Mar 2023 04:25:07 +0000
> 
> In elixir, the docs in src are like this:
> 
> ``` elixir-ts-mode
> defmodule Foo do
>   @moduledoc """
>   Foo-related functions.
> 
>   ## Examples
> 
>       iex> Foo.sum(1, 2)
>       3
>   """
> 
>   @doc """
>   Calculate the sum of two numbers.
>   """
>   def sum(a, b), do: a + b
> end
> ```
> 
> In python-mode, input the continious triple quotes, it will insert the
> left quotes when electric-pair-mode is on.
> 
> python-mode did it here:
> 
> https://github.com/emacs-mirror/emacs/blob/bfa3500c3c6e4df58978e84753718cd5358c06fb/lisp/progmodes/python.el#L6599-L6607
> 
> 
> https://github.com/emacs-mirror/emacs/blob/bfa3500c3c6e4df58978e84753718cd5358c06fb/lisp/progmodes/python.el#L6637-L6639
> 
> 
> This behavior is also very common in elixir, so can we add this to
> elixir-ts-mode? thx

Wilhelm, WDYT?