Flip and invert colors of selected area - Javascript for Photoshop

so writing script photoshop using javascript , have selection want flip vertically , invert colors of layer, can't seem find command on how this.

here's i've tried:

docref.selection.select(shaperef)

docref.activeartlayer.invert()

docref.activeartlayer.flip(direction.vertical)

i haven't checked other lines, invert line should be:

 

docref.activelayer.invert()

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