In fact, in some cases, it will even have **two JSON Schemas** in OpenAPI for the same Pydantic model, for input and output, depending on if they have **default values**.

Let's see how that works and how to change it if you need to do that.

## Pydantic Models for Input and Output { #pydantic-models-for-input-and-output }

Let's say you have a Pydantic model with default values, like this one:

 *
 * WARNING: if you decide to do the minification by hand, make sure that you cover all paths of loading classes:
 * reflection, dynamic loading, etc. and understand how the library works internally.
 * These changes might break things in subtle ways otherwise.
 */
val keepPatterns = mapOf(
    "it.unimi.dsi:fastutil" to setOf(
        // For persistence cache

        return "Plugin 'elasticsearch.internal-distribution-download' is not supported. "
            + "Use 'elasticsearch.distribution-download' plugin instead.";
    }

    /**
     * Works out the gradle project name that provides a distribution artifact.
     *
     * @param distribution the distribution from which to derive a project name

    """Streaming response with `text/event-stream` media type.

    Use as `response_class=EventSourceResponse` on a *path operation* that uses `yield`
    to enable Server Sent Events (SSE) responses.

    Works with **any HTTP method** (`GET`, `POST`, etc.), which makes it compatible
    with protocols like MCP that stream SSE over `POST`.

    The actual encoding logic lives in the FastAPI routing layer. This class

	}
	return name
}

// getHandlerName returns the name of the handler function. It takes the type
// name as a string to clean up the name retrieved via reflection. This function
// only works correctly when the type is present in the cmd package.
func getHandlerName(f http.HandlerFunc, cmdType string) string {
	name := runtime.FuncForPC(reflect.ValueOf(f).Pointer()).Name()

 * <p>If you have an instance of one of the primary {@code common.graph} types ({@link Graph},
 * {@link ValueGraph}, and {@link Network}):
 *
 * {@snippet :
 * someGraphAlgorithm(startNode, graph);
 * }
 *
 * This works because those types each implement {@code PredecessorsFunction}. It will also work
 * with any other implementation of this interface.
 *
 * <p>If you have your own graph implementation based around a custom node type {@code MyNode},

  <expression>
    <syntax>project.attachedArtifacts</syntax>
    <description>
      <![CDATA[
      This is a list of attachments to the main artifact produced by building the current POM.
      Attachments are derived works, based on the main build process, such as an ejb-client jar,
      project sources jar, etc.
    ]]></description>
  </expression>
</expressions>

      fail("setValue on unmodifiable Map.Entry succeeded");
    } catch (UnsupportedOperationException expected) {
    }
  }

  /**
   * Verifies that an Iterator is unmodifiable.
   *
   * <p>This test only works with iterators that iterate over a finite set.
   */
  public static void assertIteratorIsUnmodifiable(Iterator<?> iterator) {
    while (iterator.hasNext()) {
      iterator.next();
      try {
        iterator.remove();

          public <T extends @Nullable Object> T[] toArray(T[] array) {
            T[] result = super.toArray(array);
            if (size() < result.length) {
              // It works around a GWT bug where elements after last is not
              // properly null'ed.
              @Nullable Object[] unsoundlyCovariantArray = result;
              unsoundlyCovariantArray[size()] = null;
            }

        loadBalancer.setStrategy(LoadBalancingStrategy.WEIGHTED_RANDOM);
        when(mockChannelManager.getHealthyChannels()).thenReturn(Arrays.asList(channel1, channel2));

        // Test multiple selections to ensure it works
        for (int i = 0; i < 10; i++) {
            ChannelInfo selected = loadBalancer.selectChannel(mockMessage);
            assertTrue(Arrays.asList(channel1, channel2).contains(selected));
        }
    }