// Safe type conversions with null handling
Integer value = IntegerConversionUtil.toInteger("123");        // Returns 123
Integer nullValue = IntegerConversionUtil.toInteger(null);     // Returns null
Boolean flag = BooleanConversionUtil.toBoolean("true");        // Returns true
Date date = DateConversionUtil.toDate("2023-12-25", "yyyy-MM-dd");

// Primitive conversions with default values

        assertEquals(1, negotiationResponse.getReceiveBufferSize());
        assertEquals(1, negotiationResponse.getTransactionBufferSize());

        // Test maximum integer values
        when(negotiationResponse.getSendBufferSize()).thenReturn(Integer.MAX_VALUE);
        when(negotiationResponse.getReceiveBufferSize()).thenReturn(Integer.MAX_VALUE);

    }

    /**
     * Get field values.
     * @param document Document
     * @param fieldName Field name
     * @return Field values
     */
    protected String[] getFieldValues(final Map<String, Object> document, final String fieldName) {
        final Object value = document.get(fieldName);
        if (value instanceof String) {
            return new String[] { value.toString() };
        }

        }
        INSTANCE = new SingletonContext(p);
    }

    /**
     * Get singleton context
     *
     * The singleton context will use system properties for configuration as well as values specified in a file
     * specified through this <code>jcifs.properties</code> system property.
     *
     * @return a global context, initialized on first call
     */

  // Returns a Boolean hint indicating whether callers should prefer
  // `SummarizeValue` to resolving this handle and formatting the tensor.
  //
  // For example some tensor handles may represent distributed values, in which
  // case placement information is lost when resolving the handle.
  //
  // If false, a caller might implement pretty-printing by resolving and

                added("Field", "INSTANCE"),
                added("Method", "Bazar.getEntries()"),
                added("Method", "Bazar.valueOf(java.lang.String)"),
                added("Method", "Bazar.values()"),
            )
        }

        checkBinaryCompatibleKotlin(
            v2 = """

            /** @since 2.0 */
            @Incubating
            interface Foo

                JvmVendor.OPENJDK.name.lowercase(),
                display = ParameterDisplay.PROMPT,
                description = "The java vendor to run the performance tests",
                options = JvmVendor.values().map { it.displayName to it.name.lowercase() },
            )
            when (os) {
                Os.WINDOWS -> {
                    profilerParam("jprofiler")

    replaceWith = ReplaceWith("body.readUtf8()"),
    level = DeprecationLevel.WARNING,
  )
  fun getUtf8Body(): String = body.readUtf8()

  fun getHeader(name: String): String? = headers.values(name).firstOrNull()

  override fun toString(): String = requestLine

Si te comunicas con esa *path operation* enviando dos headers HTTP como:

```
X-Token: foo
X-Token: bar
```

El response sería como:

```JSON
{
    "X-Token values": [
        "bar",
        "foo"
    ]
}
```

## Recapitulación { #recap }

Declara headers con `Header`, usando el mismo patrón común que `Query`, `Path` y `Cookie`.

    fun name(name: String) =
      apply {
        require(name.trim() == name) { "name is not trimmed" }
        this.name = name
      }

    fun value(value: String) =
      apply {
        require(value.trim() == value) { "value is not trimmed" }
        this.value = value
      }

    fun expiresAt(expiresAt: Long) =
      apply {
        var expiresAt = expiresAt