* annotation implies nothing about the quality or performance of the API in question, only the fact
 * that it is not "API-frozen."
 *
 * <p>It is generally safe for <i>applications</i> to depend on beta APIs, at the cost of some extra
 * work during upgrades. However it is generally inadvisable for <i>libraries</i> (which get
 * included on users' CLASSPATHs, outside the library developers' control) to do so.
 *

    - [Removed](#removed-21)
- [v1.19.0-beta.2](#v1190-beta2)
  - [Downloads for v1.19.0-beta.2](#downloads-for-v1190-beta2)
    - [Source Code](#source-code-21)
    - [Client binaries](#client-binaries-21)
    - [Server binaries](#server-binaries-21)
    - [Node binaries](#node-binaries-21)
  - [Changelog since v1.19.0-beta.1](#changelog-since-v1190-beta1)
  - [Changes by Kind](#changes-by-kind-21)

    - [Removed](#removed-15)
- [v1.21.0-beta.1](#v1210-beta1)
  - [Downloads for v1.21.0-beta.1](#downloads-for-v1210-beta1)
    - [Source Code](#source-code-16)
    - [Client binaries](#client-binaries-16)
    - [Server binaries](#server-binaries-16)
    - [Node binaries](#node-binaries-16)
  - [Changelog since v1.21.0-beta.0](#changelog-since-v1210-beta0)
  - [Urgent Upgrade Notes](#urgent-upgrade-notes-2)

## IMPORTANT WARNINGS

1. APIs marked with the `@Beta` annotation at the class or method level
are subject to change. They can be modified in any way, or even
removed, at any time. If your code is a library itself (i.e. it is
used on the CLASSPATH of users outside your own control), you should
not use beta APIs, unless you [repackage] them. **If your
code is a library, we strongly recommend using the [Guava Beta Checker] to

2.  APIs without `@Beta` will remain binary-compatible for the indefinite
    future. (Previously, we sometimes removed such APIs after a deprecation
    period. The last release to remove non-`@Beta` APIs was Guava 21.0.) Even
    `@Deprecated` APIs will remain (again, unless they are `@Beta`). We have no
    plans to start removing things again, but officially, we're leaving our

   */
  @GwtIncompatible
  @J2ktIncompatible
  @CanIgnoreReturnValue
  @IgnoreJRERequirement // TODO: b/288085449 - Remove this once we use library-desugaring scents.
  @Beta // TODO: b/288085449 - Remove @Beta after we're sure that Java 8 APIs are safe for Android
  public FakeTicker advance(Duration duration) {
    return advance(duration.toNanos());
  }

  /**

        checkVersionsEqual("1.0.0x", "1-x");
        checkVersionsEqual("1cr", "1rc");

        // special "aliases" a, b and m for alpha, beta and milestone
        checkVersionsEqual("1a1", "1-alpha-1");
        checkVersionsEqual("1b2", "1-beta-2");
        checkVersionsEqual("1m3", "1-milestone-3");

        // case insensitive
        checkVersionsEqual("1X", "1x");

  - [Dependencies](#dependencies-14)
    - [Added](#added-14)
    - [Changed](#changed-14)
    - [Removed](#removed-14)
- [v1.31.0-beta.0](#v1310-beta0)
  - [Downloads for v1.31.0-beta.0](#downloads-for-v1310-beta0)
    - [Source Code](#source-code-15)
    - [Client Binaries](#client-binaries-15)
    - [Server Binaries](#server-binaries-15)
    - [Node Binaries](#node-binaries-15)

  - [Changelog since v1.27.0-beta.0](#changelog-since-v1270-beta0)
  - [Changes by Kind](#changes-by-kind-18)
    - [API Change](#api-change-6)
    - [Feature](#feature-16)
    - [Bug or Regression](#bug-or-regression-18)
  - [Dependencies](#dependencies-18)
    - [Added](#added-18)
    - [Changed](#changed-18)
    - [Removed](#removed-18)
- [v1.27.0-beta.0](#v1270-beta0)

	}

	increment := float64(bytesSinceLastWindow) / duration.Seconds()
	m.expMovingAvg = exponentialMovingAverage(beta, m.expMovingAvg, increment)
}

// exponentialMovingAverage calculates the exponential moving average
func exponentialMovingAverage(beta, previousAvg, incrementAvg float64) float64 {
	return (1-beta)*incrementAvg + beta*previousAvg
}