like Java API doc for java developer.
The doc I can see the parameter requirement of a function like admin_externalpage_setup(). and supported types of optional_param().
The doc I can see all functions of $output, including "continue_button()" function.
The doc I can see all other things "html_writer" can write, including "html_writer::link".
The doc I can see all supported DOM I can create by using Moodle, including "new single_button(...)".
Is there such doc? Thanks a lot I'm a java developer and just started learming Moodle. Can't find expected doc from Moodle website.