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sunpoet
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2020-09-12T12:06:59.714231Z
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Add h3 3.6.4

H3 is a geospatial indexing system using a hexagonal grid that can be
(approximately) subdivided into finer and finer hexagonal grids, combining the
benefits of a hexagonal grid with S2's hierarchical subdivisions.

WWW: https://github.com/uber/h3

END