Bitrix how to select infoblock properties based on the new D7 core?

Question

1C-Bitrix

Good afternoon, I can’t figure out how to make a selection of the properties of the infobox a list of values ​​​​and bind to elements in the new core. Previously, there was CIBLockProperty, I don’t know how to make a selection in the new kernel, the Bitrix documentation has become something worse. ElementTable PropertyTable methods getlist are not described at all, there are no examples.
I have ElementPropertyTable::getList in my code. But I didn't find any documentation for it.
Tell me how to be, I process the event onBeforeIblockELementAdd where PROPERTY_VALUES are solid numbers, nothing is unloaded.
I would also be grateful if someone points to the normal documentation.