What does TimeFrameSet( -1000000 - 2000 ) means?

I've read help document 'TimeFrameMode'
it says that It is also possible to use n-volume bars in TimeFrame functions without calling TimeFrameMode()

  • it is then necessary to specify n-volume bars as negative number offset by -1000000 (minus one million):

Example code for this is: TimeFrameSet( -1000000 - 2000 );
Q) Does TimeFrameSet( -1000000 - 2000 ) means to use 2000 as volume to create one bar?

Thank you for your help :smile:!

i m also confused in this article