!!! note "Hinweis"
    Es ist üblich, dass jeder Authentifizierungsanbieter seine Flows anders benennt, um sie zu einem Teil seiner Marke zu machen.

    Aber am Ende implementieren sie denselben OAuth2-Standard.

**FastAPI** enthält Werkzeuge für alle diese OAuth2-Authentifizierungs-Flows in `fastapi.security.oauth2`.

## `Security` in Dekorator-`dependencies`

		}

		// Read into buffer of that size.
		buf := make([]KinfoProc, n/SizeofKinfoProc)
		if err := sysctl(mib, (*byte)(unsafe.Pointer(&buf[0])), &n, nil, 0); err != nil {
			if err == ENOMEM {
				// Process table grew. Try again.
				continue
			}
			return nil, err
		}
		if n%SizeofKinfoProc != 0 {

	// is such that all six bit, consecutive substrings are distinct.
	// Therefore, if we have a left shifted version of this constant we can
	// find by how many bits it was shifted by looking at which six bit
	// substring ended up at the top of the word.
	// (Knuth, volume 4, section 7.3.1)
	return int(deBruijn64tab[(x&-x)*deBruijn64>>(64-6)])
}

// --- OnesCount ---

const m0 = 0x5555555555555555 // 01010101 ...

	case EventRegionEnd:
		g := s.gs[ev.Goroutine()]
		r := ev.Region()
		var sd *UserRegionSummary
		if regionStk := g.activeRegions; len(regionStk) > 0 {
			// Pop the top region from the stack since that's what must have ended.
			n := len(regionStk)
			sd = regionStk[n-1]
			regionStk = regionStk[:n-1]
			g.activeRegions = regionStk
			// N.B. No need to add the region to a task; the EventRegionBegin already handled it.
		} else {

	// were ".", this results in the output buffer being empty so we handle
	// this condition here.
	if len(buf) == 0 {
		buf = append(buf, '.')
	}
	// If the file ended with a '/' we make sure that the output also ends
	// with a '/'. This is needed to ensure that programs have a mechanism
	// to represent dereferencing symbolic links pointing to directories.

// and returns the result.
//
// body is a list of Plain, Emph, Strong, and Del nodes.
// Two Plains only appear consecutively when one is a
// potential emphasis marker that ended up being plain after all, like "_" or "**".
// There are no Link nodes.
//
// The GitHub “spec” declares that “autolinks can only come at the
// beginning of a line, after whitespace, or any of the delimiting

			go tteStack(n, stackChan)
			stack := <-stackChan
			tb := parseTraceback1(t, stack)

			// Check the traceback.
			i := 0
			for i < n {
				if len(tb.frames) == 0 {
					t.Errorf("traceback ended early")
					break
				}
				fr := tb.frames[0]
				if i == runtime.TracebackInnerFrames && elided > 0 {
					// This should be an "elided" frame.
					if fr.elided != elided {

			},
		},
	}...)

	// Add the cluster role for reading the ServiceAccountIssuerDiscovery endpoints
	// Also allow slash-ended URLs to allow clients generated from published openapi docs prior to fixing the trailing slash to work properly
	roles = append(roles, rbacv1.ClusterRole{
		ObjectMeta: metav1.ObjectMeta{Name: "system:service-account-issuer-discovery"},

 * {@code "http://xxx/"} result in a webpage being displayed? In the past, this test was frequently
 * done by determining whether the domain ended with a {@linkplain #isPublicSuffix() public suffix}
 * but was not itself a public suffix. However, this test is no longer accurate. There are many

 * {@code "http://xxx/"} result in a webpage being displayed? In the past, this test was frequently
 * done by determining whether the domain ended with a {@linkplain #isPublicSuffix() public suffix}
 * but was not itself a public suffix. However, this test is no longer accurate. There are many