BFXILW $3, R27, $23, R14                   // 6e670333
	BFXIL $26, R8, $16, R20                    // 14a55ab3
	BICW R7@>15, R5, R16                       // b03ce70a
	BIC R12@>13, R12, R19                      // 9335ec8a
	BICSW R25->20, R3, R20                     // 7450b96a
	BICS R19->12, R1, R23                      // 3730b3ea
	BICS R19, R1, R23                          // 370033ea

Then you can create another dependency function (a "dependable") that at the same time declares a dependency of its own (so it is a "dependant" too):

{* ../../docs_src/dependencies/tutorial005_an_py310.py hl[13] *}

Let's focus on the parameters declared:

* Even though this function is a dependency ("dependable") itself, it also declares another dependency (it "depends" on something else).

It will be generated only once, and then the same cached schema will be used for the next requests.

{* ../../docs_src/extending_openapi/tutorial001_py310.py hl[13:14,25:26] *}

### Override the method { #override-the-method }

Now you can replace the `.openapi()` method with your new function.

{* ../../docs_src/extending_openapi/tutorial001_py310.py hl[29] *}

        assertEquals("   j", s315, "11");
        String s314 = props1.getProperty("space");
        assertEquals("   c", s314, "12");
        String s313 = props1.getProperty("dblbackslash");
        assertEquals("\\", s313, "13");

        String s312 = props2.getProperty(" \r");
        assertEquals("\n \t \f", s312, "1");
        String s311 = props2.getProperty("a");
        assertEquals("a", s311, "2");

For example, you could have a file `config.py` with:

{* ../../docs_src/settings/app01_py310/config.py *}

And then use it in a file `main.py`:

{* ../../docs_src/settings/app01_py310/main.py hl[3,11:13] *}

/// tip

You would also need a file `__init__.py` as you saw in [Bigger Applications - Multiple Files](../tutorial/bigger-applications.md).

///

    h1 ^= k1;
    h1 = Integer.rotateLeft(h1, 13);
    h1 = h1 * 5 + 0xe6546b64;
    return h1;
  }

  // Finalization mix - force all bits of a hash block to avalanche
  private static HashCode fmix(int h1, int length) {
    h1 ^= length;
    h1 ^= h1 >>> 16;
    h1 *= 0x85ebca6b;
    h1 ^= h1 >>> 13;
    h1 *= 0xc2b2ae35;
    h1 ^= h1 >>> 16;
    return HashCode.fromInt(h1);

### 快取 OpenAPI 結構 { #cache-the-openapi-schema }

你可以把 `.openapi_schema` 屬性當作「快取」來儲存已產生的結構。

這樣使用者每次開啟 API 文件時，應用就不必重複產生結構。

結構只會產生一次，之後的請求都會使用相同的快取結果。

{* ../../docs_src/extending_openapi/tutorial001_py310.py hl[13:14,25:26] *}

### 覆寫方法 { #override-the-method }

現在你可以用新的函式取代 `.openapi()` 方法。

{* ../../docs_src/extending_openapi/tutorial001_py310.py hl[29] *}

### 檢查看看 { #check-it }

Rene Groeschke <******@****.***> 1622539170 +0200

Rene Groeschke <******@****.***> 1622539170 +0200

jovicon:
  login: jovicon
  count: 13
  avatarUrl: https://avatars.githubusercontent.com/u/21287303?u=b049eac3e51a4c0473c2efe66b4d28a7d8f2b572&v=4
  url: https://github.com/jovicon
izaguerreiro:
  login: izaguerreiro
  count: 13
  avatarUrl: https://avatars.githubusercontent.com/u/2241504?v=4
  url: https://github.com/izaguerreiro
jburckel:
  login: jburckel
  count: 13