return 0;
    }

    @Override
    protected int readBytesWireFormat(final byte[] buffer, final int bufferIndex) {
        return 0;
    }

    @Override
    public String toString() {
        return ("SmbComLogoffAndX[" + super.toString() + "]");
    }

For example, if you need to store it in a database.

For that, **FastAPI** provides a `jsonable_encoder()` function.

## Using the `jsonable_encoder` { #using-the-jsonable-encoder }

Let's imagine that you have a database `fake_db` that only receives JSON compatible data.

For example, it doesn't receive `datetime` objects, as those are not compatible with JSON.

   * subscriber.
   *
   * @return the 'dead' event that could not be delivered.
   */
  public Object getEvent() {
    return event;
  }

  @Override
  public String toString() {
    return MoreObjects.toStringHelper(this).add("source", source).add("event", event).toString();
  }

	l, err := net.Listen("tcp", "localhost:0") // ask kernel for a free port.
	if err != nil {
		t.Fatal(err)
	}
	defer l.Close()

	port := l.Addr().(*net.TCPAddr).Port

	testCases := []struct {
		host        string
		port        int
		expectedErr error
	}{
		{"", port, fmt.Errorf("listen tcp :%v: bind: address already in use", port)},
		{"127.0.0.1", port, fmt.Errorf("listen tcp 127.0.0.1:%v: bind: address already in use", port)},

    private byte fileInformationClass = FILE_BOTH_DIRECTORY_INFO;
    private byte queryFlags;
    private int fileIndex;
    private byte[] fileId;
    private final int outputBufferLength;
    private String fileName;

    /**
     * Constructs an SMB2 query directory request with the given configuration.
     *
     * @param config the configuration for this request
     */

     * @return JSON response containing the key match setting
     */
    // GET /api/admin/keymatch/setting/{id}
    @Execute
    public JsonResponse<ApiResult> get$setting(final String id) {
        return asJson(new ApiConfigResponse().setting(keyMatchService.getKeyMatch(id).map(this::createEditBody).orElseGet(() -> {

     */
    @Test
    void testToString() {
        Trans2QueryFSInformationResponse response =
                new Trans2QueryFSInformationResponse(Trans2QueryFSInformationResponse.SMB_INFO_ALLOCATION);
        String responseString = response.toString();
        assertTrue(responseString.startsWith("Trans2QueryFSInformationResponse["), "toString should start with the class name");

    private static final long serialVersionUID = 1L;

    /**
     * Constructor.
     * @param message The error message.
     */
    public UnsupportedExtractException(final String message) {
        super(message, false, false);
    }

/**
 * Simple derived class to verify that we handle generics correctly.
 *
 * @author Kevin Bourrillion
 */
@GwtCompatible
public class DerivedComparable extends BaseComparable {
  public DerivedComparable(String s) {
    super(s);
  }

  @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;

package org.apache.maven.api.services;

import org.apache.maven.api.annotations.Experimental;

@Experimental
public class DependencyResolverException extends MavenException {

    public DependencyResolverException(String message, Throwable cause) {
        super(message, cause);
    }