I'm trying to remove unnecessary topics from a rosbag file to make it easier to distribute. In doing so, i'd like to know the size of each topic, not just the size of the bag file as a whole. However, running `rosbag info example_bag.bag` only provides me with the size of the bag file and not the size of individual topics.
Is there any way to use the `rosbag` command line tool to obtain the size of individual topics within the bag file?
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