// R = Z1*T1 VOR T0, T0, Y0 VOR T1, T1, Y1 CALL p256MulInternal<>(SB) VOR T0, T0, RL // SAVE: RL VOR T1, T1, RH // SAVE: RH STXVD2X RH, (R1)(R17) // V27 has to be saved // X=X2; Y- ; MUL; H=T // H = X2*T1 MOVD in2+16(FP), P2ptr LXVD2X (R0)(P2ptr), X0 // X2L LXVD2X (R16)(P2ptr), X1 // X2H XXPERMDI X0, X0, $2, X0 XXPERMDI X1, X1, $2, X1 CALL p256MulInternal<>(SB) VOR T0, T0, HL // SAVE: HL VOR T1, T1, HH // SAVE: HH // X=Z2; Y=Z2; MUL; T- // T2 = Z2*Z2 MOVD in2+16(FP), P2ptr LXVD2X (R19)(P2ptr), X0...

You can define Header parameters the same way you define `Query`, `Path` and `Cookie` parameters.

## Import `Header` { #import-header }

First import `Header`:

{* ../../docs_src/header_params/tutorial001_an_py310.py hl[3] *}

## Declare `Header` parameters { #declare-header-parameters }

Then declare the header parameters using the same structure as with `Path`, `Query` and `Cookie`.

	DB.AutoMigrate(&Product{})

	p := Product{Code: "Invalid", Price: 100}
	if DB.Save(&p).Error == nil {
		t.Fatalf("An error from before create callbacks happened when create with invalid value")
	}

	if DB.Where("code = ?", "Invalid").First(&Product{}).Error == nil {
		t.Fatalf("Should not save record that have errors")
	}

	if DB.Save(&Product{Code: "dont_save", Price: 100}).Error == nil {

"Hashing" means converting some content (a password in this case) into a sequence of bytes (just a string) that looks like gibberish.

Whenever you pass exactly the same content (exactly the same password) you get exactly the same gibberish.

But you cannot convert from the gibberish back to the password.

### Why use password hashing { #why-use-password-hashing }

///

/// note | Technical Details

You could also use `from starlette.templating import Jinja2Templates`.

**FastAPI** provides the same `starlette.templating` as `fastapi.templating` just as a convenience for you, the developer. But most of the available responses come directly from Starlette. The same with `Request` and `StaticFiles`.

///

## Writing templates { #writing-templates }

    for (int i = 0; i < keyBits; i++) {
      int same = 0x0; // bitset for output bits with same values
      int diff = 0x0; // bitset for output bits with different values
      int count = 0;
      // originally was 2 * Math.log(...), making it try more times to avoid flakiness issues
      int maxCount = (int) (4 * Math.log(2 * keyBits * hashBits) + 1);
      while (same != 0xffffffff || diff != 0xffffffff) {

    public static NtlmPasswordAuthentication requestNtlmPasswordAuthentication(final String url, final SmbAuthException sae) {
        if (auth == null) {
            return null;
        }
        synchronized (auth) {
            auth.url = url;
            auth.sae = sae;
            return auth.getNtlmPasswordAuthentication();
        }
    }

    /**

### Same Schema for Input and Output Models in Docs { #same-schema-for-input-and-output-models-in-docs }

And now there will be one single schema for input and output for the model, only `Item`, and it will have `description` as **not required**:

<div class="screenshot">
<img src="/img/tutorial/separate-openapi-schemas/image05.png">
</div>

  }

  @Test
  fun testNoUncompress() {
    val response = response("https://httpbin.org/brotli", "XXXX".encodeUtf8())

    val same = brotliInterceptor.decompress(response)

    val responseString = same.body.string()
    assertThat(responseString).isEqualTo("XXXX")
  }

  @Test
  fun testFailsUncompress() {
    val response =

    }
}
```

/// note

Notice that even though the `item` was declared the same way as before, it is now expected to be inside of the body with a key `item`.

///

**FastAPI** will do the automatic conversion from the request, so that the parameter `item` receives its specific content and the same for `user`.