sample method
Sample the latency for touchpoint's callIndex (1-based) under
the declared bands.
Implementation
LatencySample sample(
String touchpoint,
int callIndex,
WorldLatencyBands bands,
) {
final band = _bandFor(callIndex, bands);
final (min, max) = switch (band) {
LatencyBand.fast => (bands.fastMinMs, bands.fastMaxMs),
LatencyBand.slow => (bands.slowMinMs, bands.slowMaxMs),
LatencyBand.timeout => (bands.timeoutMinMs, bands.timeoutMaxMs),
};
return LatencySample(_rng.nextInt(min, max), band);
}