// > - the question mark ?,
    // > - the asterisk or star *,
    // > - the plus sign +,
    // > - the opening parenthesis (,
    // > - the closing parenthesis ),
    // > - and the opening square bracket [,
    // > - the opening curly brace {,
    // > These special characters are often called "metacharacters".
    [
        /[\\$.|*+(){^]/g,
        match => `\\${match}`
    ],

    [

But at the same time, functions defined with `async def` have to be "awaited". So, functions with `async def` can only be called inside of functions defined with `async def` too.

So, about the egg and the chicken, how do you call the first `async` function?