{!../../../docs_src/bigger_applications/app/main.py!}
```

### 🔌 `APIRouter`Ⓜ `users` & `items`

🔜, ➡️ 🔌 `router`Ⓜ ⚪️➡️ 🔁 `users` & `items`:

```Python hl_lines="10-11" title="app/main.py"
{!../../../docs_src/bigger_applications/app/main.py!}
```

!!! info
    `users.router` 🔌 `APIRouter` 🔘 📁 `app/routers/users.py`.

  %1:2 = "tf.TPUPartitionedOutputV2"(%0) {device = "", partition_dims = [2, 1]} : (tensor<2x2xf32>) -> (tensor<1x2xf32>, tensor<1x2xf32>)
  return %1#0, %1#1 : tensor<1x2xf32>, tensor<1x2xf32>
}
func.func @_func(%arg0: tensor<2x4xf32>, %arg1: tensor<4x2xf32>) -> tensor<2x2xf32> {

	}
	// As a special case, computation might still be exact, if exponent
	// was negative and if it amounts to computing an exact division.
	// In that case, we ignore all lower bits.
	// Note that division by 10^11 cannot be exact as 5^11 has 26 bits.
	if q < 0 && q >= -10 && divisibleByPower5(uint64(mant), -q) {
		exact = true
		d0 = true
	}
	// Remove extra lower bits and keep rounding info.
	extra := uint(-dexp2)

{!../../../docs_src/bigger_applications/app/main.py!}
```


### Die `APIRouter` für `users` und `items` inkludieren

Inkludieren wir nun die `router` aus diesen Submodulen `users` und `items`:

```Python hl_lines="10-11" title="app/main.py"
{!../../../docs_src/bigger_applications/app/main.py!}
```

!!! info
    `users.router` enthält den `APIRouter` in der Datei `app/routers/users.py`.

//              |          |    \
//             &&          +    div
//           /   |        / \
//        !=    !=       div -1
//       / |   / |      / |
//    rem 0.0 sn sn1    -  $1
//   / |      |  |    / |
// $0 $1     $1 rem  $0 rem
// Note that named operators like 'sn' and 'sn1' are different values produced by
// the same function in this case the sign function. Named values like 'div'

{!../../../docs_src/bigger_applications/app/main.py!}
```

### Include the `APIRouter`s for `users` and `items`

Now, let's include the `router`s from the submodules `users` and `items`:

```Python hl_lines="10-11" title="app/main.py"
{!../../../docs_src/bigger_applications/app/main.py!}
```

!!! info
    `users.router` contains the `APIRouter` inside of the file `app/routers/users.py`.

  %0:2 = "tf_device.cluster"() ({
    // CHECK: tf.ApproxTopK
    // CHECK-NOT: _xla_outside_compilation
    %1:2 = "tf.ApproxTopK"(%arg0) {k = 2} : (tensor<16xf32>) -> (tensor<?xf32>, tensor<?xi32>)
    tf_device.return %1#0, %1#1 : tensor<?xf32>, tensor<?xi32>
  }) {allow_soft_placement = true, num_cores_per_replica = 1, topology =  "", device_assignment =  []} : () -> (tensor<?xf32>, tensor<?xi32>)
  func.return %0#0, %0#1 : tensor<?xf32>, tensor<?xi32>
}

  func.return %1#0, %1#1: tensor<3x4x2xf32>, tensor<3x4x2xi32>
}

// -----

// CHECK-LABEL: topk_d
func.func @topk_d(%arg0: tensor<?x8xf32>) -> (tensor<?x2xf32>, tensor<?x2xi32>) {
  %0 = arith.constant dense<2> : tensor<i32>
  %1:2 = "tfl.topk_v2"(%arg0, %0) : (tensor<?x8xf32>, tensor<i32>) -> (tensor<?x2xf32>, tensor<?x2xi32>)
  func.return %1#0, %1#1: tensor<?x2xf32>, tensor<?x2xi32>
}

```Python hl_lines="5" title="app/main.py"
{!../../../docs_src/bigger_applications/app/main.py!}
```

### 包含 `users` 和 `items` 的 `APIRouter`

现在，让我们来包含来自 `users` 和 `items` 子模块的 `router`。

```Python hl_lines="10-11" title="app/main.py"
{!../../../docs_src/bigger_applications/app/main.py!}
```

!!! info
    `users.router` 包含了 `app/routers/users.py` 文件中的 `APIRouter`。

				{Type: v1.NodeHostName, Address: testKubeletHostname},
			},
			existingAnnotations: map[string]string{
				"alpha.kubernetes.io/provided-node-ip": "10.1.1.1,2600:1f14:1d4:d101::ba3d",
			},
			expectedAnnotations: map[string]string{
				"alpha.kubernetes.io/provided-node-ip": "10.1.1.1",
			},
			shouldError: false,
		},
	}
	for _, testCase := range cases {
		t.Run(testCase.name, func(t *testing.T) {