telemetry-metrics-aggregation/aws.smithy.kotlin.runtime.telemetry.metrics.aggregation/AggregatingTelemetryProvider/Builder/exporter

exporter

var exporter: MetricExporter?

Shorthand for a single destination on the default interval - equivalent to metricReader = PeriodicMetricReader { exporter = ... }, with flushMode applied if set. Setting this and metricReader fails at construction rather than leaving one exporter silently inert.