Max velocity of cartesian path setting

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I have calculated a trajectory for my robot with move_group.compute_cartesian_path(..). Everything seems normal so far. Related to this question: question. I was wondering if this is added so far?

It is very important that the end effector of my robot has a constant velocity.

Calculated velocity of end effector looks like this:

Is there a way to set a parameter to get a constant velocity of end effector?