### Question:
RateLimitingSampler implements Sampler { @Override public String getDescription() { return this.toString(); } RateLimitingSampler(int maxTracesPerSecond); @Override SamplingResult shouldSample(
      SpanContext parentContext,
      String traceId,
      String name,
      Kind spanKind,
      ReadableAttributes attributes,
      List<SpanData.Link> parentLinks); @Override String getDescription(); @Override String toString();  }### Answer:
@Test void description() { RateLimitingSampler sampler = new RateLimitingSampler(15); assertEquals("RateLimitingSampler{15.00}", sampler.getDescription()); }