Attributes
Number of matching spans scanned by discovery (at most 10,000).
True when more than 10,000 spans matched, so discovery scanned a
sample and the counts describe that sample rather than the full set.Union of attribute keys across the scanned spans, each with its
coverage count. Empty when no spans match the time range.
Union of evaluator outputs across the scanned spans, each with its
coverage count. Empty when the application has no evaluator outputs.