s2.Set("fizz buzz")
	b.ResetTimer()

	b.ReportAllocs()
	for i := 0; i < b.N; i++ {
		_ = m.String()
	}
}

func BenchmarkRealworldExpvarUsage(b *testing.B) {
	var (
		bytesSent Int
		bytesRead Int
	)

	// The benchmark creates GOMAXPROCS client/server pairs.
	// Each pair creates 4 goroutines: client reader/writer and server reader/writer.

	if err != nil {
		return
	}
	if len(bytes) > 8 {
		// We'll overflow an int64 in this case.
		err = StructuralError{"integer too large"}
		return
	}
	for bytesRead := 0; bytesRead < len(bytes); bytesRead++ {
		ret <<= 8
		ret |= int64(bytes[bytesRead])
	}

	// Shift up and down in order to sign extend the result.
	ret <<= 64 - uint8(len(bytes))*8
	ret >>= 64 - uint8(len(bytes))*8
	return
}

    override val timestampNs: Long,
    override val call: Call,
  ) : CallEvent()

  data class ResponseBodyEnd(
    override val timestampNs: Long,
    override val call: Call,
    val bytesRead: Long,
  ) : CallEvent() {
    override fun closes(event: CallEvent): Boolean = event is ResponseBodyStart && call == event.call
  }

  data class ResponseFailed(
    override val timestampNs: Long,

    }
    if (responseBodyBytes != null) {
      val responseBodyEnd: ResponseBodyEnd = listener.removeUpToEvent<ResponseBodyEnd>()
      MatcherAssert.assertThat(
        "response body bytes",
        responseBodyEnd.bytesRead,
        responseBodyBytes,
      )
    } else {
      assertThat(listener.recordedEventTypes()).doesNotContain("ResponseBodyEnd")
    }
  }

  private fun greaterThan(value: Long): Matcher<Long?> {

if(statName==='read_transfer_count'){const bytesRead=stats.read_transfer_count-
prevStats.read_transfer_count;stats.bytes_read_per_sec=bytesRead/timeIntervalSeconds;}
if(statName==='write_transfer_count'){const bytesWritten=stats.write_transfer_count-