```

////

👉 🔜 ⛓ 👈 **FastAPI** 🔜 ⌛ 💪 🎏:

```JSON
{
    "name": "Foo",
    "description": "The pretender",
    "price": 42.0,
    "tax": 3.2,
    "tags": ["rock", "metal", "bar"],
    "image": {
        "url": "http://example.com/baz.jpg",
        "name": "The Foo live"
    }
}
```

🔄, 🤸 👈 📄, ⏮️ **FastAPI** 👆 🤚:

* 👨‍🎨 🐕‍🦺 (🛠️, ♒️), 🐦 🏷

The parameter `name` is defined as `Optional[str]`, but it is **not optional**, you cannot call the function without the parameter:

```Python
say_hi()  # Oh, no, this throws an error! 😱
```

The `name` parameter is **still required** (not *optional*) because it doesn't have a default value. Still, `name` accepts `None` as the value:

```Python
say_hi(name=None)  # This works, None is valid 🎉
```

// has the same name as the value of this field.
//
// - from special JWT claim from STS request for AssumeRoleWithOIDC API (when
// not using RoleARN). The claim value can be a string or a list and refers to
// the names of access policies.
//
// For all except the RoleARN case, the implementation is the same - the policy

            "type" : "keyword"
          },
          "intervalTime" : {
            "type" : "integer"
          },
          "maxAccessCount" : {
            "type" : "long"
          },
          "name" : {
            "type" : "keyword"
          },
          "numOfThread" : {
            "type" : "integer"
          },
          "permissions" : {
            "type" : "keyword"
          },

     * StringUtil.capitalize("ABC")  = "ABC"
     * </pre>
     *
     * @param name
     *            名前
     * @return 結果の文字列
     */
    public static String decapitalize(final String name) {
        if (isEmpty(name)) {
            return name;
        }
        final char[] chars = name.toCharArray();
        if (chars.length >= 2 && Character.isUpperCase(chars[0]) && Character.isUpperCase(chars[1])) {

}

// ObjectV object version key/versionId
type ObjectV struct {
	ObjectName string `xml:"Key"`
	VersionID  string `xml:"VersionId"`
}

// ObjectToDelete carries key name for the object to delete.
type ObjectToDelete struct {
	ObjectV
	// Replication status of DeleteMarker
	DeleteMarkerReplicationStatus string `xml:"DeleteMarkerReplicationStatus"`

     * @param len
     */
    public TransCallNamedPipe ( Configuration config, String pipeName, byte[] data, int off, int len ) {
        super(config, SMB_COM_TRANSACTION, TRANS_CALL_NAMED_PIPE);
        this.name = pipeName;
        this.pipeData = data;
        this.pipeDataOff = off;
        this.pipeDataLen = len;
        this.timeout = 0xFFFFFFFF;
        this.maxParameterCount = 0;
        this.maxDataCount = 0xFFFF;

import pytest
from dirty_equals import IsDict
from fastapi.testclient import TestClient

from ...utils import needs_py39


@pytest.fixture(name="client")
def get_client():
    from docs_src.query_params_str_validations.tutorial010_an_py39 import app

    client = TestClient(app)
    return client


@needs_py39
def test_query_params_str_validations_no_query(client: TestClient):
    response = client.get("/items/")

    private boolean containsMethod(CtClass c, CtMethod method) {
        // TODO signature contains return type
        // but return type can be overridden
        return collectAllPublicApiMethods(c).any { it.name == method.name && it.signature == method.signature }
    }

    byte[] bytes = HashTestUtils.ascii(input);

    Checksum checksum = supplier.get();
    checksum.update(bytes, 0, bytes.length);
    long value = checksum.getValue();

    String toString = "name";
    HashFunction func = new ChecksumHashFunction(supplier, 32, toString);
    assertEquals(toString, func.toString());
    assertEquals(value, func.hashBytes(bytes).padToLong());
  }

  private static void assertHash32(