你可以在「路徑操作裝飾器」上設定 `response_model_exclude_unset=True`：

{* ../../docs_src/response_model/tutorial004_py310.py hl[22] *}

如此這些預設值就不會被包含在回應中，只有實際被設定的值才會包含。

因此，如果你對該「路徑操作」發送針對 ID 為 `foo` 的項目的請求，回應（不包含預設值）會是：

```JSON
{
    "name": "Foo",
    "price": 50.2
}
```

/// info | 說明

你也可以使用：

* `response_model_exclude_defaults=True`
* `response_model_exclude_none=True`

        return false;
    }

    @Override
    public boolean canPagingCountLater() {
        return false;
    }

    @Override
    public boolean canPagingReSelect() {
        return true;
    }

    @Override
    public void paging(int pageSize, int pageNumber) {
        if (pageSize <= 0) {
            throwPagingPageSizeNotPlusException(pageSize, pageNumber);
        }

        return false;
    }

    @Override
    public boolean canPagingCountLater() {
        return false;
    }

    @Override
    public boolean canPagingReSelect() {
        return true;
    }

    @Override
    public void paging(int pageSize, int pageNumber) {
        if (pageSize <= 0) {
            throwPagingPageSizeNotPlusException(pageSize, pageNumber);
        }

    @Test
    public void test_append_booleanValue() {
        StringBuilder buf = new StringBuilder();
        Supplier<Object> supplier = () -> Boolean.TRUE;

        monitorTarget.append(buf, "boolKey", supplier);
        assertEquals("\"boolKey\":\"true\"", buf.toString());
    }

    // Test append method with Date value (other object type)
    @Test
    public void test_append_dateValue() {

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

        assertTrue("Should have WEB protocol type", hasWeb);
        assertTrue("Should have FILE protocol type", hasFile);
    }

 * a single section.
 */
internal fun withoutSectionSpans(mappings: List<Mapping>): List<Mapping> {
  val result = mutableListOf<Mapping>()

  val i = mappings.iterator()
  var current = i.next()

  while (true) {
    if (current.spansSections) {
      result +=
        Mapping(
          current.sourceCodePoint0,
          current.section + 0x7f,
          current.type,
          current.mappedTo,
        )

    }

    /**
     * Constructs an SmbException with the specified error code
     *
     * @param errcode the error code (either SMB or Windows error code)
     * @param winerr true if errcode is a Windows error code, false if it's an SMB error code
     */
    public SmbException(final int errcode, final boolean winerr) {
        super(winerr ? getMessageByWinerrCode(errcode) : getMessageByCode(errcode));

    </description>
    <name>html</name>
    <function-class>org.codelibs.fess.taglib.FessFunctions</function-class>
    <function-signature>java.lang.String html(boolean)</function-signature>
    <example>
      ${fe:html(true)}...${fe:html(false)}
    </example>
  </function>

  <function>
    <description>
      Returns a label name.
    </description>
    <name>labelexists</name>

        }

        return@synchronized Effects(
          callsToExecute = callsToExecute,
          idleCallbackToRun = idleCallbackToRun,
        )
      }

    var callDispatcherQueueStart = true

    for (i in 0 until effects.callsToExecute.size) {
      val call = effects.callsToExecute[i]

      // If the newly-enqueued call is already out, skip its dispatcher queue events. We only

                searchRequestBuilder.setPreference(Constants.SEARCH_PREFERENCE_LOCAL)
                        .setQuery(pair.getValue2())
                        .setSize(keyMatch.getMaxSize());
                return true;
            });
        }
        return Collections.emptyList();
    }

    /**
     * Converts a string to lowercase.
     *
     * @param term The string to convert.