def h3_indexes_from_unidirectional_edge(edge)
      max_hexagons = 2
      out = H3Indexes.of_size(max_hexagons)
      Bindings::Private.h3_indexes_from_unidirectional_edge(edge, out)
      out.read
    end
def h3_indexes_from_unidirectional_edge(edge)
      max_hexagons = 2
      out = H3Indexes.of_size(max_hexagons)
      Bindings::Private.h3_indexes_from_unidirectional_edge(edge, out)
      out.read
    end
Derive origin and destination H3 indexes from edge.

 Returned in the form

   [origin, destination]

 @param [Integer] edge H3 edge index

 @example Get origin and destination indexes from edge
   H3.h3_indexes_from_unidirectional_edge(1266218516299644927)
   [617700169958293503, 617700169961177087]

 @return [Array<Integer>] H3 index array.