</div>

This means that it will **always have a value**, it's just that sometimes the value could be `None` (or `null` in JSON).

That means that, clients using your API don't have to check if the value exists or not, they can **assume the field will always be there**, but just that in some cases it will have the default value of `None`.

    }

    // Test ProtocolType enum values
    public void test_protocolTypeEnumValues() {
        final ProtocolType[] values = ProtocolType.values();
        assertEquals("Should have 2 protocol types", 2, values.length);

        boolean hasWeb = false;
        boolean hasFile = false;
        for (final ProtocolType type : values) {
            if (type == ProtocolType.WEB) {

  public void testPut_supportedPresent() {
    assertEquals("put(present, value) should return the old value", v0(), getMap().put(k0(), v3()));
    expectReplacement(entry(k0(), v3()));
  }

  @MapFeature.Require(SUPPORTS_PUT)
  public void testPut_supportedNotPresent() {
    assertNull("put(notPresent, value) should return null", put(e3()));
    expectAdded(e3());
  }

    // First add all the long candidate values.
    bigValues.addAll(Iterables.transform(POSITIVE_LONG_CANDIDATES, TO_BIGINTEGER));
    // Add boundary values manually to avoid over/under flow.
    bigValues.add(BigInteger.valueOf(Long.MAX_VALUE).add(ONE));
    // Now add values near 2^N for lots of values of N.
    for (int exponent :
        asList(
            64,
            65,

pkg os, func CopyFS(string, fs.FS) error #62484
pkg path/filepath, func Localize(string) (string, error) #57151
pkg reflect, func SliceAt(Type, unsafe.Pointer, int) Value #61308
pkg reflect, method (Value) Seq() iter.Seq[Value] #66056
pkg reflect, method (Value) Seq2() iter.Seq2[Value, Value] #66056
pkg reflect, type Type interface, CanSeq() bool #66056
pkg reflect, type Type interface, CanSeq2() bool #66056

    /**
     * Default constructor for ReqHeaderPager.
     * Initializes the pager with default values for page size and current page number.
     */
    public ReqHeaderPager() {
        // Default constructor - initialization handled by field defaults and clear() method
    }

    /**
     * Clears all pager data and resets to default values.
     * This method resets pagination state and clears all request header fields.
     */

    }

    @Override
    public boolean containsValue(@Nullable Object value) {
      assertTrue(Thread.holdsLock(mutex));
      return delegate.containsValue(value);
    }

    @Override
    public void clear() {
      assertTrue(Thread.holdsLock(mutex));
      delegate.clear();
    }

    @Override
    public Collection<V> values() {
      assertTrue(Thread.holdsLock(mutex));

          public String apply(String value) {
            return Ascii.toLowerCase(value);
          }
        };

    static final EntryTransformer<String, String, String> ENTRY_TRANSFORMER =
        new EntryTransformer<String, String, String>() {
          @Override
          public String transformEntry(String key, String value) {
            return Ascii.toLowerCase(value);
          }
        };
  }

  /**
   * Compares two {@code int} values as specified by {@link Integer#compare}, <i>if</i> the result
   * of this comparison chain has not already been determined.
   */
  public abstract ComparisonChain compare(int left, int right);

  /**
   * Compares two {@code long} values as specified by {@link Long#compare}, <i>if</i> the result of

fun buildScanCustomValueParam(
    key: String,
    value: String,
) = """-Dscan.value.$key=$value"""

fun TestCoverage.asBuildScanCustomValue() =
    testType.name.toCamelCase().toCapitalized() +
        testJvmVersion.toCapitalized() +
        "${vendor.displayName}${os.asName()}${arch.asName()}"

// Generates a Build Scan custom value "PartOf=X,Y,Z"
// where X, Y, Z are all the stages including current stage