* for **output** it will be **required** (and possibly `None`, or in JSON terms, `null`)

### Model for Output in Docs { #model-for-output-in-docs }

You can check the output model in the docs too, **both** `name` and `description` are marked as **required** with a **red asterisk**:

<div class="screenshot">
<img src="/img/tutorial/separate-openapi-schemas/image03.png">
</div>

/**
 * A project extension which describes a module of a Gradle distribution.
 */
abstract class GradleModuleExtension(val tasks: TaskContainer, val objects: ObjectFactory) {

    companion object {
        const val NAME: String = "gradleModule"
    }

    @get:Nested
    abstract val identity: ModuleIdentity

    fun identity(action: ModuleIdentity.() -> Unit) {
        action(identity)
    }

    /**

        @Override
        public Configuration getConfig() {
            return null; // Not relevant for AbstractCIFSContext tests
        }

        @Override
        public SmbPipeResource getPipe(String name, int flags) {
            return null; // Not relevant for AbstractCIFSContext tests
        }

        @Override
        public SmbResource get(String key) {

        // When
        String result = trans.toString();

        // Then
        assertTrue(result.startsWith("Trans2QueryPathInformation["), "String should start with the class name.");
        assertTrue(result.contains("informationLevel=0x101"), "String should contain the correct information level.");
        assertTrue(result.contains("filename=test.txt"), "String should contain the correct filename.");

        activator = new PropertyProfileActivator();
    }

    private Profile newProfile(String key, String value) {
        ActivationProperty ap =
                ActivationProperty.newBuilder().name(key).value(value).build();

        Activation a = Activation.newBuilder().property(ap).build();

        Profile p = Profile.newBuilder().activation(a).build();

        return p;
    }

   * expression {@code o -> Optional.toJavaUtil(o)} instead.
   *
   * @since 33.4.0 (but since 21.0 in the JRE flavor)
   */
  @SuppressWarnings({
    "AmbiguousMethodReference", // We chose the name despite knowing this risk.
    "NullableOptional", // Null passthrough is reasonable for type conversions
  })
  // If users use this when they shouldn't, we hope that NewApi will catch subsequent Optional calls

## Pythonで環境変数を読み取る { #read-env-vars-in-python }

環境変数はPythonの**外側**（ターミナル、またはその他の方法）で作成し、その後に**Pythonで読み取る**こともできます。

例えば、以下のような`main.py`ファイルを用意します:

```Python hl_lines="3"
import os

name = os.getenv("MY_NAME", "World")
print(f"Hello {name} from Python")
```

/// tip | 豆知識

[`os.getenv()`](https://docs.python.org/3.8/library/os.html#os.getenv) の第2引数は、返されるデフォルト値です。

指定しない場合、デフォルトは`None`ですが、ここでは使用するデフォルト値として`"World"`を指定しています。

        @Override
        public String[] getExtraQueries() {
            return parent.getExtraQueries();
        }

        @Override
        public Object getAttribute(final String name) {
            return parent.getAttribute(name);
        }

        @Override
        public Locale getLocale() {
            return parent.getLocale();
        }

        @Override

     * Creates a new failure URL entry or increments the error count for an existing URL.
     *
     * @param crawlingConfig the crawling configuration associated with the failure
     * @param errorName the name/type of the error that occurred
     * @param url the URL that failed to be crawled
     * @param e the exception that caused the failure

[Snapshot API Diffs][guava-snapshot-api-diffs] are also available.

Another easy way to get to the Javadoc is to open
[guava.dev/api](https://guava.dev/api). You can also jump right to a specific
class by appending the class name to guava.dev. For example,
[guava.dev/ImmutableList](https://guava.dev/ImmutableList)!

## Learn about Guava

-   Our users' guide, [Guava Explained]