code: def GetMemActiveMB(self):
          '''Retrieves the amount of memory the virtual machine is actively using its
             estimated working set size.'''
          counter = c_uint()
          ret = vmGuestLib.VMGuestLib_GetMemActiveMB(self.handle.value, byref(counter))
          if ret != VMGUESTLIB_ERROR_SUCCESS: raise VMGuestLibException(ret)
          return counter.valuf GetMemActiveMB(self):
          '''Retrieves the amount of memory the virtual machine is actively using its
             estimated working set size.'''
          counter = c_uint()
          ret = vmGuestLib.VMGuestLib_GetMemActiveMB(self.handle.value, byref(counter))
          if ret != VMGUESTLIB_ERROR_SUCCESS: raise VMGuestLibException(ret)
          return counter.value
docs: Retrieves the amount of memory the virtual machine is actively using its
             estimated working set size.