Handle StatelessHandlerFn
		// OutCapacity is the output capacity on the caller.
		// If <= 0 capacity will be 1.
		OutCapacity int
	}

	// StreamHandlerFn must process a request with an optional initial payload.
	// It must keep consuming from 'in' until it returns.
	// 'in' and 'out' are independent.
	// The handler should never close out.
	// Buffers received from 'in'  can be recycled with PutByteBuffer.

// If data is not xlv2, it is returned in full.
func readXLMetaNoData(r io.Reader, size int64) ([]byte, error) {
	initial := size
	hasFull := true
	if initial > metaDataReadDefault {
		initial = metaDataReadDefault
		hasFull = false
	}

	buf := metaDataPoolGet()[:initial]
	_, err := io.ReadFull(r, buf)
	if err != nil {
		return nil, fmt.Errorf("readXLMetaNoData(io.ReadFull): %w", err)
	}

```Python hl_lines="11"
{!../../docs_src/query_params_str_validations/tutorial004.py!}
```

Essa expressão regular específica verifica se o valor recebido no parâmetro:

* `^`: Inicia com os seguintes caracteres, ou seja, não contém caracteres anteriores.
* `fixedquery`: contém o valor exato `fixedquery`.
* `$`: termina aqui, não contém nenhum caractere após `fixedquery`.

# Geração de Projetos - Modelo

Você pode usar um gerador de projetos para começar, por já incluir configurações iniciais, segurança, banco de dados e os primeiros _endpoints_ API já feitos para você.

Um gerador de projetos sempre terá uma pré-configuração que você pode atualizar e adaptar para suas próprias necessidades, mas pode ser um bom ponto de partida para seu projeto.

## Full Stack FastAPI PostgreSQL

        }

        public void columnHomePostalAddress() {
            doColumn("homePostalAddress");
        }

        public void columnInitials() {
            doColumn("initials");
        }

        public void columnInternationaliSDNNumber() {
            doColumn("internationaliSDNNumber");
        }

        public void columnLabeledURI() {
            doColumn("labeledURI");

    CompactLinkedHashSet<E> set = createWithExpectedSize(elements.length);
    Collections.addAll(set, elements);
    return set;
  }

  /**
   * Creates a {@code CompactLinkedHashSet} instance, with a high enough "initial capacity" that it
   * <i>should</i> hold {@code expectedSize} elements without rebuilding internal data structures.
   *
   * @param expectedSize the number of elements you expect to add to the returned set

---

### 🚀 **Getting Started**

Starting with Gradle is easy with these essential resources. Follow these to install Gradle, set up initial projects, and explore supported platforms:

- **[Installing Gradle](https://docs.gradle.org/current/userguide/installation.html)**
- **Build Projects for Popular Languages and Frameworks**:

    /**
     * @return the common/negotiated capabilieis
     */
    public final int getCommonCapabilities () {
        return this.commonCapabilities;
    }


    /**
     * @return initial security blob
     */
    public byte[] getSecurityBlob () {
        return this.securityBuffer;
    }


    /**
     * @return the maxTransactSize
     */
    public int getMaxTransactSize () {

    CompactHashSet<E> set = createWithExpectedSize(elements.length);
    Collections.addAll(set, elements);
    return set;
  }

  /**
   * Creates a {@code CompactHashSet} instance, with a high enough "initial capacity" that it
   * <i>should</i> hold {@code expectedSize} elements without growth.
   *
   * @param expectedSize the number of elements you expect to add to the returned set

      CompactLinkedHashMap<K, V> create() {
    return new CompactLinkedHashMap<>();
  }

  /**
   * Creates a {@code CompactLinkedHashMap} instance, with a high enough "initial capacity" that it
   * <i>should</i> hold {@code expectedSize} elements without rebuilding internal data structures.
   *
   * @param expectedSize the number of elements you expect to add to the returned set