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View/edit binary Protocol Buffers messages
tile creation time
tile is completely water (not used yet)
number of 'tags'
strings referenced by tags
separate common attributes from label to allow
linestring
polygons (MUST be implicitly closed)
points (POIs)
Used in:
number of geometry 'indices'
number of 'tags'
reference to tile.tags
---------------- optional items --------------- osm layer [-5 .. 5] -> [0 .. 10]