[Q] Update.zip basics topic

I have managed to create simple "update.zip" files. From what I understand, the text script "updater-script" uses commands found in a binary file, "update-binary". The way I understand it, if I use a command like "ui_print()" then this command is present inside that binary file. As I have copied this binary file off something else, I have no idea what is inside of it. Is there a way to either make this binary file, or obtain a "generic" binary file that has all its commands listed/documented?

Many thanks