source for undocumented JSFL commands?

I found a couple undocumented commands under the FLfile namespace this way:

• Find Adobe's install directory. Navigate to Adobe\Adobe Animate 2021\Common\Configuration\External Libraries. Depending on what year it is, the directory name will probably change, so watch out.
• Dump all text and read as UTF-16 LE. Sublime Text can do this.
• Using the Regular expression /[a-zA-z]+\b/ copy all the matched text into another file
• Format the matched strings as JS string literals, separated by commas, and make sure the last one doesn't have a comma (for the old JS syntax) e.g.

'A',
'B',
'CDE',
...etc.
'lastOne'

•  Copy this into a JSFL file like so:

(function () 
{
	var strings = 
	[
		// Paste string literals here...
	];

	fl.outputPanel.clear();
	strings.forEach(function (s)
	{
		if (typeof FLfile[s] === 'function')
			fl.outputPanel.trace(s);
	});
})();

• Run the command from Animate. This will dump all valid functions into the output window.

For the FLfile namespace, the following two are undocumented:

• readBinary
• runCommandLine - runs a CMD command. Does not output to output window, so you'll have to use temporary files to output things.

If you work a lot with JSFL you should have a look into xJSFL

I used it a while ago for a project, and got the impression that its rather well documented.

Flash CS5+ uses the SpiderMonkey engine from Mozilla for his JS.

You should look on the projects homepage to get all the undocumented JSFL commands you can wish for...

Please?