ddbh3_create_conn       Create a DuckDB connection with spatial and h3
                        extensions
ddbh3_default_conn      Get or create default DuckDB connection
ddbh3_get_child_pos     Get the position of an H3 cell within its
                        parent
ddbh3_get_hierarchy     Get parent and children H3 cells
ddbh3_get_icosahedron_faces
                        Get the icosahedron faces of H3 cell indexes
ddbh3_get_resolution    Get the resolution of H3 cell indexes
ddbh3_h3_to             Convert H3 string or UBIGINT indexes to other
                        representations
ddbh3_is                Check properties of H3 cell indexes
ddbh3_lonlat_to         Convert longitude and latitude to H3 cell
                        representations
ddbh3_points_to         Convert spatial points to H3 cell
                        representations
ddbh3_vertex            Convert H3 cell indexes to vertex
                        representations
