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I suppose you are working in python, so I suggest you to look at this tutorial. You can see the message type of a topic using the command rostopic info /topic_name, in your case the message type should be sensor_msgs/LaserScan.

I suppose you are working in python, so I suggest you to look at this tutorial. You can see the message type of a topic using the command rostopic info /topic_name, in your case the message type should be sensor_msgs/LaserScan.

I suppose you are working in python, so I suggest you to look at this tutorial. You can see the message type of a topic using the command rostopic info /topic_name, in your case the message type should be sensor_msgs/LaserScan.

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