return db.callbacks
}

// AddError add error to db
func (db *DB) AddError(err error) error {
	if err != nil {
		if db.Config.TranslateError {
			if errTranslator, ok := db.Dialector.(ErrorTranslator); ok {
				err = errTranslator.Translate(err)
			}
		}

		if db.Error == nil {
			db.Error = err
		} else {
			db.Error = fmt.Errorf("%v; %w", db.Error, err)
		}
	}
	return db.Error
}

                    valid, that would mean a violation of the contract with the client,
                    so it's an error from the API developer. So, FastAPI will raise an
                    error and return a 500 error code (Internal Server Error).

                Read more about it in the
                [FastAPI docs for Response Model](https://fastapi.tiangolo.com/tutorial/response-model/).

Check this function, it already has type hints:

{* ../../docs_src/python_types/tutorial003_py39.py hl[1] *}

Because the editor knows the types of the variables, you don't only get completion, you also get error checks:

<img src="/img/python-types/image04.png">

Now you know that you have to fix it, convert `age` to a string with `str(age)`:

{* ../../docs_src/python_types/tutorial004_py39.py hl[2] *}

     *         <code>false</code> otherwise
     * @throws CIFSException if an error occurs accessing the resource
     */
    boolean exists() throws CIFSException;

    /**
     * Fetch a child resource
     *
     * @param name the name of the child resource to resolve
     * @return the child resource
     * @throws CIFSException if an error occurs accessing the resource
     */

// Code generated by "stringer -type=APIErrorCode -trimprefix=Err api-errors.go"; DO NOT EDIT.

package cmd

import "strconv"

func _() {
	// An "invalid array index" compiler error signifies that the constant values have changed.
	// Re-run the stringer command to generate them again.
	var x [1]struct{}
	_ = x[ErrNone-0]
	_ = x[ErrAccessDenied-1]
	_ = x[ErrBadDigest-2]
	_ = x[ErrEntityTooSmall-3]
	_ = x[ErrEntityTooLarge-4]

	c2 := Company{Name: "Books"}
	if err := DB.Create(&c1).Error; err != nil {
		t.Fatalf("create c1: %v", err)
	}
	if err := DB.Create(&c2).Error; err != nil {
		t.Fatalf("create c2: %v", err)
	}

	// Create users with companies
	u1 := User{Name: "John", Age: 25, CompanyID: &c1.ID}
	u2 := User{Name: "Jane", Age: 30, CompanyID: &c2.ID}
	if err := DB.Create(&u1).Error; err != nil {
		t.Fatalf("create u1: %v", err)
	}

        this.status = NT_STATUS_UNSUCCESSFUL;
    }

    /**
     * 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) {

	// for multiple endpoints.
	Version(context.Context) (string, error)

	// APIs returns a list of APIs supported by the KMS server.
	//
	// TODO(aead): remove this API call. It's hardly useful.
	APIs(context.Context) ([]madmin.KMSAPI, error)

	// Stat returns the current KMS status.
	Status(context.Context) (map[string]madmin.ItemState, error)

	// CreateKey creates a new key at the KMS with the given key ID.

	ch2 := make(chan Maskable, 1)
	doneCh := make(chan struct{})
	defer close(doneCh)
	if err := ps.Subscribe(MaskAll, ch1, doneCh, nil); err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if err := ps.Subscribe(MaskAll, ch2, doneCh, nil); err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	ps.Lock()
	defer ps.Unlock()

	if len(ps.subs) != 2 || ps.NumSubscribers(MaskAll) != 2 || ps.Subscribers() != 2 {

     * Sends an exception to the user in the <b>error</b> error level.
     * The stack trace for this exception will be output when this error level is enabled.
     *
     * @param error the error that caused this log
     */
    void error(Throwable error);

    void error(Supplier<String> content);

    void error(Supplier<String> content, Throwable error);