code: public void retractObject(final InternalFactHandle factHandle,
                                final PropagationContext context,
                                final InternalWorkingMemory workingMemory) {
          checkDirty();
  
          doRetractObject( factHandle, context, workingMemory);
      }
docs: Retract the <code>FactHandleimpl</code> from the <code>Rete</code> network. Also remove the
  <code>FactHandleImpl</code> from the node memory.
  
  @param factHandle    The fact handle.
  @param context       The propagation context.
  @param workingMemory The working memory session.