When an Xbase Part has children, this method implicitly calls the :destroy() method for all the Xbase Parts that are contained in :childList().
Method XbpPartHandler():destroy() Foundation
Releases system resources.
:destroy() --> self
This method returns the object executing the method.
The method :destroy() is part of the life cycle of Xbase Parts and releases system resources requested using the method :create(). After the :destroy() method has been called, the Xbase Part is unable to operate. However the object remains in existence and can later request system resources again using:create().
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