RevertSpans reverts the passed span to the target time, which must be above the GC threshold for every range (unless the flag ignoreGCThreshold is passed which should be done with care -- see RevertRangeRequest.IgnoreGCThreshold).

RevertSpansFanout calls RevertSpans in parallel.

RevertTenantToTimestamp reverts a tenant to the passed timestamp.

RevertDefaultBatchSize is the default batch size for reverting spans.