and it is possible to gradually move apps from Istio 1.0/1.1 to the new environments and
across environments ( for example canary -> prod )

Note: there are still some cluster roles that may need to be fixed, most likely cluster permissions
will need to move to the security component.

## Everything is Optional

Each component in the new installer is optional. Users can install the component defined in the new installer,

            return 0;
        }
        bufferIndex += len + 1;
        // win98 observed not returning nativeFileSystem
/* Problems here with iSeries returning ASCII even though useUnicode = true
 * Fortunately we don't really need nativeFileSystem for anything.
        if( byteCount > bufferIndex - start ) {
            nativeFileSystem = readString( buffer, bufferIndex );
            bufferIndex += stringWireLength( nativeFileSystem, bufferIndex );

import org.codehaus.plexus.personality.plexus.lifecycle.phase.Contextualizable;

/**
 * A conflict resolver factory that obtains instances from a plexus container.
 *
 * TODO you don't need the container in here with the active maps (jvz).
 * @since 3.0
 */
@Named
@Singleton
@Deprecated
public class DefaultConflictResolverFactory implements ConflictResolverFactory, Contextualizable {

        }
        if (outputStream instanceof PrintStream ps) {
            return ps;
        }
        return new PrintStream(outputStream);
    }

    //
    // These are the only methods we need in our primordial logger
    //

    @Override
    public void log(Level level, String message, Throwable error) {
        PrintWriter pw = level == Level.ERROR ? err : level == Level.WARN ? out : null;

=============

OkHttp has internal APIs to enable debug logging. It uses the `java.util.logging` API which can be
tricky to configure. As a shortcut, you can paste [OkHttpDebugLogging.kt]. Then enable debug logging
for whichever features you need:

```
OkHttpDebugLogging.enableHttp2()
OkHttpDebugLogging.enableTaskRunner()
```

### Activating on Android

```
$ adb shell setprop log.tag.okhttp.Http2 DEBUG

      return "Ordering.arbitrary()";
    }

    /*
     * We need to be able to mock identityHashCode() calls for tests, because it
     * can take 1-10 seconds to find colliding objects. Mocking frameworks that
     * can do magic to mock static method calls still can't do so for a system
     * class, so we need the indirection. In production, Hotspot should still

/// note

This is supported since FastAPI version `0.115.0`. 🤓

///

## Query Parameters with a Pydantic Model

Declare the **query parameters** that you need in a **Pydantic model**, and then declare the parameter as `Query`:

//// tab | Python 3.10+

```Python hl_lines="9-13  17"
{!> ../../docs_src/query_param_models/tutorial001_an_py310.py!}
```

////

```Python hl_lines="6"
{!../../docs_src/path_operation_advanced_configuration/tutorial003.py!}
```

## docstringによる説明の高度な設定

*path operation関数* のdocstringからOpenAPIに使用する行を制限することができます。

`\f` (「書式送り (Form Feed)」のエスケープ文字) を付与することで、**FastAPI** はOpenAPIに使用される出力をその箇所までに制限します。

ドキュメントには表示されませんが、他のツール (例えばSphinx) では残りの部分を利用できるでしょう。

```Python hl_lines="19-29"
{!../../docs_src/path_operation_advanced_configuration/tutorial004.py!}

-   type: textarea id: logs attributes: label: Relevant log output description:
    Please copy and paste any relevant log output. This will be automatically

     * build a trusted path to a trusted root certificate.
     *
     * The chain should include all intermediate certificates but does not need the root certificate
     * that we expect to be known by the remote peer. The peer already has that certificate so
     * transmitting it is unnecessary.
     */
    fun heldCertificate(