Ratelimit Time Unit (proto)
Enum type.v3.RateLimitUnit
Identifies the unit of of time for rate limit.
- UNKNOWN
 (DEFAULT) The time unit is not known.
- SECOND
 The time unit representing a second.
- MINUTE
 The time unit representing a minute.
- HOUR
 The time unit representing an hour.
- DAY
 The time unit representing a day.