}

    // Test FilePurgeVisitor
    public void test_FilePurgeVisitor() throws IOException {
        // Create a test file
        File testFile = new File(tempDir, "_1/_2/test.png");
        testFile.getParentFile().mkdirs();
        testFile.createNewFile();
        testFile.setLastModified(System.currentTimeMillis() - 2000L);

        // per bouncycastle
        // <li>1: K(i) := PRF( KI, [i]_2 || Label || 0x00 || Context || [L]_2 ) with the counter at the very beginning
        // of the fixedInputData (The default implementation has this format)</li>
        // with the parameters
        // <li>1. KDFCounterParameters(ki, null, "Label || 0x00 || Context || [L]_2]", 8);

        // all fixed inputs go into the suffix:
        // + label

📚 💼 👆 5️⃣📆 ⏪ 💭 ❔ 📚 ❔. 👶

🚥 👆 🤝 📚 👫👫 ⏮️ 👫 ❔, 👆 🔜 ▶️️ 🛂 [FastAPI 🕴](fastapi-people.md#_2){.internal-link target=_blank}. 👶

💭, 🏆 ⚠ ☝: 🔄 😇. 👫👫 👟 ⏮️ 👫 😩 & 📚 💼 🚫 💭 🏆 🌌, ✋️ 🔄 🏆 👆 💪 😇. 👶

💭 **FastAPI** 👪 😇 & 👍. 🎏 🕰, 🚫 🚫 🎭 ⚖️ 😛 🎭 ⤵ 🎏. 👥 ✔️ ✊ 💅 🔠 🎏.

---

///

## Pydanticを使わない方法

🚥 👆 🚙 🔢 😐 🔢 ⏮️ `def`, ⚫️ 🔜 🤙 🔗 (👆 ✍ ⚫️ 👆 📟), 🚫 🧵, 🚥 🔢 ✍ ⏮️ `async def` ⤴️ 👆 🔜 `await` 👈 🔢 🕐❔ 👆 🤙 ⚫️ 👆 📟.

---

🔄, 👉 📶 📡 ℹ 👈 🔜 🎲 ⚠ 🚥 👆 👟 🔎 👫.