Overrides the `GtkEditable` properties for
This is a helper function that should be called in class_init, after installing your own properties.
Note that your class must have "text", "cursor-position", "selection-bound", "editable", "width-chars", "max-width-chars", "xalign" and "enable-undo" properties for this function to work.
To handle the properties in your set_property and get_property functions, you can either use [func@Gtk.Editable.delegate_set_property] and [
func@Gtk.Editable.delegate_get_property] (if you are using a delegate), or remember the
first_prop offset and add it to the values
in the [enum@Gtk.EditableProperties] enumeration to get the property IDs for these properties.
property ID to use for the first property
the number of properties that were installed