Describes a rolling range.

[most_recent_span - num_spans + 1, most_recent_span]. For example, say you want the range to include only the latest span, the appropriate RollingRange would simply be: RollingRange < num_spans = 1 > The range is clipped based on available data. ote that num_spans is required in proto.RollingRange, while others are optional.

num_spans int32 num_spans
start_span_number int32 start_span_number