Optional geoIf set to true, fields must be an array containing a single attribute
path and the attribute value must be an array with two values, the first
of which will be interpreted as the longitude and the second of which
will be interpreted as the latitude of the document.
If set to false, fields can be either an array containing two
attribute paths, the first of which will be interpreted as the latitude
and the second as the longitude, or a single attribute path for an array
containing two values, the first of which will be interpreted as the
latitude, the second as the longitude.
Default: false
Optional legacyIf set to true, the index will use pre-3.10 rules for parsing
GeoJSON polygons. This option is always implicitly true when using
ArangoDB 3.9 or lower.
Options for creating a geo index.