return {"Hello": "World"}


@app.get("/items/{item_id}")
async def read_item(item_id: int, q: Union[str, None] = None):
    return {"item_id": item_id, "q": q}
```

**Note**:

If you don't know, check the _"In a hurry?"_ section about <a href="https://fastapi.tiangolo.com/async/#in-a-hurry" target="_blank">`async` and `await` in the docs</a>.

</details>

### Run it

Run the server with:

El programa **server** (por ejemplo **Uvicorn** a través de **FastAPI CLI**) es capaz de interpretar esos headers, y luego pasar esa información a tu aplicación.

			d.scratch.add(c)
		}
	}

	// . followed by 1 or more digits
	if c == '.' {
		isFloat = true
		d.scratch.add(c)

		// first char following must be digit
		if c = d.next(); c < '0' || c > '9' {
			return 0, d.mkError(ErrSyntax, "after decimal point in numeric literal")
		}
		d.scratch.add(c)

		for {
			if d.remaining() == 0 {
				return 0, d.mkError(ErrUnexpectedEOF)
			}

		// When we serialize we don't care if it was trailing.
		c.Type ^= ChecksumTrailing
	}
	if len(crc) != c.Type.RawByteLen() {
		return b
	}
	b = append(b, tmp[:n]...)
	b = append(b, crc...)
	if c.Type.Is(ChecksumMultipart) {
		var checksums int
		if c.WantParts > 0 && !c.Type.Is(ChecksumIncludesMultipart) {
			checksums = c.WantParts
		}
		// Ensure we don't divide by 0:

            // GitHub actions for contributor PRs use a public Build Scan instance
            // in this case we need to explicitly configure the PTS server
            // Don't move this line into the lambda as it may cause config cache problems
            extensions.findByType<DevelocityTestConfiguration>()?.predictiveTestSelection {
                this as PredictiveTestSelectionConfigurationInternal

public class Hexdump {

    /**
     * Default constructor.
     */
    public Hexdump() {
        // Utility class - no instance variables to initialize
    }

    /**
     * Array of hexadecimal digit characters used for converting binary data to hex representation.
     */
    public static final char[] HEX_DIGITS = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };

    /**

    assertEquals(distinct, getMultiset().elementSet().size());
  }

  @CollectionFeature.Require(absent = SUPPORTS_REMOVE)
  public void testRemove_occurrences_unsupported_absent() {
    // notice: we don't care whether it succeeds, or fails with UOE
    try {
      assertEquals(
          "multiset.remove(absent, 2) didn't return 0 or throw an exception",
          0,
          getMultiset().remove(e3(), 2));

    assertEquals(distinct, getMultiset().elementSet().size());
  }

  @CollectionFeature.Require(absent = SUPPORTS_REMOVE)
  public void testRemove_occurrences_unsupported_absent() {
    // notice: we don't care whether it succeeds, or fails with UOE
    try {
      assertEquals(
          "multiset.remove(absent, 2) didn't return 0 or throw an exception",
          0,
          getMultiset().remove(e3(), 2));

        assertEquals("false", properties.get(Constants.MAVEN_DEPLOY_BUILD_POM));
    }

    @Test
    void testDeployBuildPomWithOtherProperties() {
        // Test that other properties don't interfere
        Map<String, Object> properties = Map.of(
                Constants.MAVEN_CONSUMER_POM,
                "false",
                Constants.MAVEN_MAVEN3_PERSONALITY,
                "true",

   */
  public static <E> ImmutableSet<E> of(E e1) {
    return new SingletonImmutableSet<>(e1);
  }

  /*
   * TODO: b/315526394 - Skip the Builder entirely for the of(...) methods, since we don't need to
   * worry that we might trigger the fallback to the JDK-backed implementation? (The varargs one
   * _could_, so we could keep it as it is. Or we could convince ourselves that hash flooding is