Question: I want to rewrite this code under python and ros 2 . Help me please velocity = 0 . 1 ; robotCmd = rospublisher (

I want to rewrite this code under python and ros2.Help me please
velocity =0.1; robotCmd = rospublisher("/cmd_vel","DataFormat","struct") ;velMsg = rosmessage(robotCmd);velMsg.Linear.X = velocity;send(robotCmd,velMsg)pause(4)velMsg.Linear.X =0;send(robotCmd,velMsg)

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