a5_cell                 A5 Cell Index Vector
a5_cell_area            Cell area at a given resolution
a5_cell_distance        Distance between cell centroids
a5_cell_from_arrow      Convert between a5_cell and Arrow uint64 arrays
a5_cell_to_boundary     Get cell boundary polygons
a5_cell_to_children     Get child cells
a5_cell_to_lonlat       Convert A5 cell indices to coordinates
a5_cell_to_parent       Navigate to parent cell(s)
a5_compact              Compact a set of A5 cells
a5_get_num_cells        Total number of cells at a given resolution
a5_get_num_children     Number of children between two resolutions
a5_get_res0_cells       Get all resolution-0 root cells
a5_get_resolution       Get the resolution of A5 cell indices
a5_grid_disk            Cells within k hops of a cell
a5_linestring_to_cells
                        Cells traced by a great-circle linestring
a5_lonlat_to_cell       Convert coordinates to A5 cell indices
a5_polygon_to_cells     Cells whose centres lie inside a polygon
a5_set_threads          Set the number of threads used by a5R
a5_spherical_cap        Cells within a great-circle radius
a5_u64_to_hex           Coerce between hex strings and A5 cell vectors
a5_uncompact            Uncompact a set of A5 cells to a target
                        resolution
wk_methods              wk methods for a5_cell
