bool found = false;
  for (Node* node : graph->nodes()) {
    if (CanCreateXlaKernel(node->def())) {
      EXPECT_FALSE(found);
      found = true;
      std::vector<int32> hostmem_attr;
      EXPECT_TRUE(TryGetNodeAttr(node->def(), "_input_hostmem", &hostmem_attr));
      EXPECT_EQ(hostmem_attr.size(), 1);
      EXPECT_EQ(hostmem_attr[0], 1);
    }
  }

* das Geld einsammeln.
* eine Benachrichtigung an den API-Benutzer (den externen Entwickler) zurücksenden.
    * Dies erfolgt durch Senden eines POST-Requests (von *Ihrer API*) an eine *externe API*, die von diesem externen Entwickler bereitgestellt wird (das ist der „Callback“).

## Die normale **FastAPI**-Anwendung

Sehen wir uns zunächst an, wie die normale API-Anwendung aussehen würde, bevor wir den Callback hinzufügen.

  math_ops.matmul(x, y, name='x_y_prod')


def tfmatmulandadd(_):
  # This tests multiple outputs.
  x = array_ops.placeholder(dtypes.float32, name='x_hold')
  y = array_ops.placeholder(dtypes.float32, name='y_hold')
  math_ops.matmul(x, y, name='x_y_prod')
  math_ops.add(x, y, name='x_y_sum')


def tffunction(_):

  @function.Defun(dtypes.int32, dtypes.int32)
  def test_func(a, b):
    return a + b

!!! danger "Gefahr"
    Speichern Sie niemals das Klartext-Passwort eines Benutzers. Speichern Sie immer den „sicheren Hash“, den Sie verifizieren können.

    Falls Ihnen das nichts sagt, in den [Sicherheits-Kapiteln](security/simple-oauth2.md#passwort-hashing){.internal-link target=_blank} werden Sie lernen, was ein „Passwort-Hash“ ist.

## Mehrere Modelle

	}

	// resolve and type-check package AST
	importer := new(resolveTestImporter)
	conf := Config{Importer: importer}
	uses := make(map[*syntax.Name]Object)
	defs := make(map[*syntax.Name]Object)
	_, err := conf.Check("testResolveIdents", files, &Info{Defs: defs, Uses: uses})
	if err != nil {
		t.Fatal(err)
	}

	// check that all packages were imported
	for _, name := range pkgnames {
		if !importer.imported[name] {

	}

	// resolve and type-check package AST
	importer := new(resolveTestImporter)
	conf := Config{Importer: importer}
	uses := make(map[*ast.Ident]Object)
	defs := make(map[*ast.Ident]Object)
	_, err := conf.Check("testResolveIdents", fset, files, &Info{Defs: defs, Uses: uses})
	if err != nil {
		t.Fatal(err)
	}

	// check that all packages were imported
	for _, name := range pkgnames {
		if !importer.imported[name] {

    def create(self, arg0: str, arg1: FunctionType) -> FuncOp: ...
    def getArguments(self) -> list[BlockArgument]: ...
    def getBody(self) -> Region: ...
    def getName(self) -> str: ...
    def getType(self) -> FunctionType: ...

class FunctionType(Type):
    def __init__(self, *args, **kwargs) -> None: ...
    def getResults(self) -> list[Type]: ...

class IntegerAttr(Attribute):

        0 * _
    }

    def "file tree is live"() {
        def source1 = Mock(FileCollectionInternal)
        def source2 = Mock(FileCollectionInternal)
        def dir1 = new File("dir1")
        def dir2 = new File("dir1")
        def dir3 = new File("dir1")
        def source3 = Mock(FileCollectionInternal)
        def collection = new TestCompositeFileCollection(source1, source2)

    def userHomeDir = temporaryFolder.createDir("user-home")
    def usedGradleVersions = Mock(UsedGradleVersions) {
        getUsedGradleVersions() >> ([] as SortedSet)
    }
    def progressMonitor = Mock(CleanupProgressMonitor)

    @Subject def cleanupAction = new WrapperDistributionCleanupAction(userHomeDir, usedGradleVersions)

    def "deletes distributions for unused versions"() {

        given:
        def message1 = unicast()
        def message2 = broadcast()
        def message3 = unicast()
        def endpoint1 = queue.newEndpoint()
        def endpoint2 = queue.newEndpoint()

        and:
        queue.dispatch(message1)
        queue.dispatch(message2)
        queue.dispatch(message3)

        when:
        queue.empty(endpoint1)