FallbackReason

Reasons for using fallback response.

Enums
FALLBACK_REASON_UNSPECIFIED No fallback reason specified.
SERVER_ERROR A server error happened while calculating routes with your preferred routing mode, but we were able to return a result calculated by an alternative mode.
LATENCY_EXCEEDED We were not able to finish the calculation with your preferred routing mode on time, but we were able to return a result calculated by an alternative mode.