I'm not sure sidepath is the right tag. Is there a physical path that bikes can use, if so, I'd add the path and show bicycle=yes. Can bicycles and pedestrians use the gate? If so you can access for them. See https://wiki.openstreetmap.org/wiki/Tag:bicycle%3Duse_sidepath and https://wiki.openstreetmap.org/wiki/Key:access
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            Published using OSMCha: https://osmcha.org/changesets/174029845
            