accuracy - any numeric expression or field containing a number that represents a distance in meters.
timeout - any numeric expression or field containing a number that represents the most time it will take to fetch the location. Measured in seconds, the default value is 60.
LocationValues fetches the location values until the requested accuracy is met or until
timeout. If you cancel the process, FileMaker Go returns the most accurate location in the cache (if any). If no location is received, FileMaker Go returns an empty string.
LocationValues returns the following location for a device: