* 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-17)
- [v1.20.0-beta.1](#v1200-beta1)
  - [Downloads for v1.20.0-beta.1](#downloads-for-v1200-beta1)
    - [Source Code](#source-code-18)
    - [Client binaries](#client-binaries-18)
    - [Server binaries](#server-binaries-18)
    - [Node binaries](#node-binaries-18)
  - [Changelog since v1.20.0-beta.0](#changelog-since-v1200-beta0)
  - [Changes by Kind](#changes-by-kind-17)

    - [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)

            "8.8.0", "8.9.0",
            "9.7.0-alpha01", "9.7.0-beta01", "9.7.0-rc01", "9.7.0", "9.7.1",
            "9.8.0-alpha01", "9.8.0-beta01", "9.8.0-rc01", "9.8.0", "9.8.1",
            "9.9.0-alpha01", "9.9.0-beta01", "9.9.0-rc01", "9.9.0", "9.9.1",
            "9.10.0-alpha01", "9.10.0-beta01", "9.10.0-rc01", "9.10.0", "9.10.1",
            "9.11.0-alpha01", "9.11.0-beta01", "9.11.0-rc01",
            "9.12.0-alpha01", "9.12.0-beta01",

  - [Changelog since v1.35.0-beta.0](#changelog-since-v1350-beta0)
  - [Changes by Kind](#changes-by-kind-2)
    - [Feature](#feature-2)
    - [Bug or Regression](#bug-or-regression-2)
  - [Dependencies](#dependencies-2)
    - [Added](#added-2)
    - [Changed](#changed-2)
    - [Removed](#removed-2)
- [v1.35.0-beta.0](#v1350-beta0)
  - [Downloads for v1.35.0-beta.0](#downloads-for-v1350-beta0)

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

from fastapi import FastAPI
from fastapi.testclient import TestClient
from inline_snapshot import snapshot
from pydantic import BaseModel, Field


class MessageEventType(str, Enum):
    alpha = "alpha"
    beta = "beta"


class MessageEvent(BaseModel):
    event_type: MessageEventType = Field(default=MessageEventType.alpha)
    output: str


class MessageOutput(BaseModel):
    body: str = ""

   */
  @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");