presto-geospatial/src/main/java/io/prestosql/plugin/geospatial/GeoFunctions.java/GeoFunctions/stIsEmpty
class GeoFunctions:    @SqlNullable
    @Description("Returns TRUE if this Geometry is an empty geometrycollection, polygon, point etc")
    @ScalarFunction("ST_IsEmpty")
    @SqlType(BOOLEAN)
    public static Boolean stIsEmpty(@SqlType(GEOMETRY_TYPE_NAME) Slice input)
    {
        Envelope envelope = deserializeEnvelope(input);
        return envelope == null || envelope.isEmpty();
    }