Divi Builder :: Custom Module :: Declaring Partial Compatibility

psuedo-code.php

<?php

class MYEX_HelloWorld extends ET_Builder_Module {

	public $slug       = 'myex_hello_world';
	public $vb_support = 'partial';

	public function init() {
		$this->name = esc_html__( 'Hello World', 'myex-my-extension' );
	}

	...
}