the [Guava Beta Checker] to ensure that you do not use any `@Beta` APIs!**

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

### Conventions

Once a new property has been introduced, you need to consider what its conventions will be.

A convention is a value for a property that is used when no other opinion has been provided.  Sometimes conventions are called "default values", but this can be confusing because no property has a "default value" upon creation (except for collection-like properties, which start empty).  Conventions need to be explicitly set on a property.

<div class="screenshot">
<img src="/img/tutorial/separate-openapi-schemas/image02.png">
</div>

This means that it will **always have a value**, it's just that sometimes the value could be `None` (or `null` in JSON).

   * them under J2CL—or, as an unfortunate side effect, under GWT. We do still give the fields
   * themselves their proper values under GWT, since GWT's EnumMap does need the Class instance.
   *
   * Note that sometimes these fields *do* have correct values under J2CL: They will if the caller
   * calls `create(Foo.class)`, rather than `create(map)`. That's fine; we just shouldn't rely on
   * it.
   */

"""
contrib = _LazyLoader("contrib", globals(), "tensorflow.contrib",
                      _CONTRIB_WARNING)
# The templated code that replaces the placeholder above sometimes
# sets the __all__ variable. If it does, we have to be sure to add
# "contrib".
if "__all__" in vars():
  vars()["__all__"].append("contrib")

from tensorflow.python.platform import flags

        }
        responseQueue.put(new Response(request.methodName, result, null));
      }
    } catch (ThreadDeath death) {
      return;
    } catch (InterruptedException ignored) {
      // SynchronousQueue sometimes throws InterruptedException while the threads are stopping.
    } catch (Throwable uncaught) {
      this.uncaughtThrowable = uncaught;
    }
  }

  private static class Request {
    final String methodName;

        assertTrue(sitemapsHelper.isValidChangefreq(null));
        assertTrue(sitemapsHelper.isValidChangefreq(""));

        // Invalid changefreq
        assertFalse(sitemapsHelper.isValidChangefreq("sometimes"));
        assertFalse(sitemapsHelper.isValidChangefreq("invalid"));

        // Valid date format
        assertTrue(sitemapsHelper.isValidDateFormat("2025-01-01"));

Your API almost always has to send a **response** body. But clients don't necessarily need to send **request bodies** all the time, sometimes they only request a path, maybe with some query parameters, but don't send a body.

                <div class="collapse" id="update-baseline-${changeId}">
                  <div class="well">
                      Sometimes, the change was made on the `release` branch but hasn't yet been published to the baseline version.

      }
    }

    /*
     * TODO(cpovirk): `return (V) removedValue` once our checker permits that.
     *
     * (We promoted a class of warnings into errors because sometimes they indicate real problems.
     * But now we need to "undo" some instance of spurious errors, as discussed in
     * https://github.com/jspecify/checker-framework/issues/8.)
     */