"Accept-Ranges": "bytes",
    "Content-Length": "0",
    "ETag": "9fe7a344ef4227d3e53751e9d88ce41e",
    "Server": "MinIO",
    "Strict-Transport-Security": "max-age=31536000; includeSubDomains",
    "Vary": "Origin,Accept-Encoding",
    "X-Amz-Id-2": "dd9025bab4ad464b049177c95eb6ebf374d3b3fd1af9251148b658df7ac2e3e8",
    "X-Amz-Request-Id": "17CDC1F4D7E69123",
    "X-Content-Type-Options": "nosniff",

{!../../docs_src/middleware/tutorial001.py!}
```

## 🎏 🛠️

👆 💪 ⏪ ✍ 🌖 🔃 🎏 🛠️ [🏧 👩‍💻 🦮: 🏧 🛠️](../advanced/middleware.md){.internal-link target=_blank}.

func render(m diag.Message, colorize bool) string {
	return fmt.Sprintf("%s%v%s [%v]%s %s",
		colorPrefix(m, colorize), m.Type.Level(), colorSuffix(colorize),
		m.Type.Code(), m.Origin(), fmt.Sprintf(m.Type.Template(), m.Parameters...),
	)
}

func colorPrefix(m diag.Message, colorize bool) string {
	if !colorize {
		return ""
	}

	prefix, ok := colorPrefixes[m.Type.Level()]

     * creator of the problem, the general expectation is that the hint provides sufficient information to the user to
     * track the problem back to its origin. A concrete example for such a source hint can be the file path or URL from
     * which the settings were read.
     *
     * @return The hint about the source of the problem or an empty string if unknown, never {@code null}.

    //                                                                            ========
    /**
     * {@inheritDoc} <br>
     * Application Origin Methods:
     * <pre>
     * <span style="font-size: 130%; color: #553000">[Small Helper]</span>
     * o saveInfo() <span style="color: #3F7E5E">// save messages to session</span>

- [ ] Make sure that all commits are [signed off](https://git-scm.com/docs/git-commit#Documentation/git-commit.txt---signoff) to indicate that you agree to the terms of [Developer Certificate of Origin](https://developercertificate.org/).

     * creator of the problem, the general expectation is that the hint provides sufficient information to the user to
     * track the problem back to its origin. A concrete example for such a source hint can be the file path or URL from
     * which the settings were read.
     *
     * @return The hint about the source of the problem or an empty string if unknown, never {@code null}.

می‌توانید بعداً در مورد میان‌افزارهای دیگر در [راهنمای کاربر پیشرفته: میان‌افزار پیشرفته](../advanced/middleware.md){.internal-link target=_blank} بیشتر بخوانید.

شما در بخش بعدی در مورد این که چگونه با استفاده از یک میان‌افزار، <abbr title="Cross-Origin Resource Sharing">CORS</abbr> را مدیریت کنید، خواهید خواند....

import java.util.AbstractSet;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;
import javax.annotation.CheckForNull;

/**
 * A class to represent the set of edges connecting an (implicit) origin node to a target node.
 *
 * <p>The {@link #outEdgeToNode} map allows this class to work on networks with parallel edges. See
 * {@link EdgesConnecting} for a class that is more efficient but forbids parallel edges.
 *

     * information that is available at the point the problem occurs and as such merely serves as best effort
     * to provide information to the user to track the problem back to its origin.
     *
     * @return The identifier of the model from which the problem originated or an empty string if unknown, never
     *         {@code null}.
     */
    @Nonnull
    String getModelId();

    /**