if (ssn != null) {
                ssn.removeAttribute("npa-" + server);
            }
            if (sae.getNtStatus() == NtStatus.NT_STATUS_ACCESS_VIOLATION) {
                /* Server challenge no longer valid for
                 * externally supplied password hashes.
                 */
                resp.sendRedirect(req.getRequestURL().toString());
                return;
            }

        // Test with different parameters
        result = response.readSetupWireFormat(buffer, 10, 50);
        assertEquals(0, result);
    }

    @Test
    @DisplayName("Test readParametersWireFormat with valid data")
    void testReadParametersWireFormat() throws Exception {
        byte[] buffer = new byte[8];
        int bufferIndex = 0;

        // status (2 bytes)
        SMBUtil.writeInt2(0, buffer, bufferIndex);

			if !ok {
				continue
			}
			for _, spec := range d.Specs {
				if s, ok := spec.(*ast.ImportSpec); ok && s.Path.Value == `"C"` {
					// Replace "C" with _ "unsafe", to keep program valid.
					// (Deleting import statement or clause is not safe if it is followed
					// in the source by an explicit semicolon.)
					f.Edit.Replace(f.offset(s.Path.Pos()), f.offset(s.Path.End()), `_ "unsafe"`)
				}
			}

b.form?a(b.form):b.form;a.formUtils.$win.trigger("validatorsLoaded",[c,b])})}}(a),function(a,b){"use strict";var c=a(b);a.formUtils=a.extend(a.formUtils||{},{$win:c,defaultConfig:function(){return{ignore:[],errorElementClass:"error",successElementClass:"valid",borderColorOnError:"#b94a48",errorMessageClass:"form-error",validationRuleAttribute:"data-validation",validationErrorMsgAttribute:"data-validation-error-msg",errorMessagePosition:"inline",errorMessageTemplate:{container:'<div class="{errorMessageClass}...

			n:            27,
			want:         26,
			wantErr:      io.EOF,
			wantBuffered: 0,
		},
		// Any error from filling shouldn't show up until we
		// get past the valid bytes. Here we return 5 valid bytes at the same time
		// as an error, but test that we don't see the error from Discard.
		{
			name: "fill error, discard less",
			r: newScriptedReader(func(p []byte) (n int, err error) {

```

The `name` parameter is **still required** (not *optional*) because it doesn't have a default value. Still, `name` accepts `None` as the value:

```Python
say_hi(name=None)  # This works, None is valid 🎉
```

The good news is, once you are on Python 3.10 you won't have to worry about that, as you will be able to simply use `|` to define unions of types:

{* ../../docs_src/python_types/tutorial009c_py310.py hl[1,4] *}

        </field>
        <field>
          <name>checksumPolicy</name>
          <version>1.0.0+</version>
          <description>
            What to do when verification of an artifact checksum fails. Valid values are "fail" (default for Maven 4 and
            above), "warn" (default for Maven 3) or "ignore".
          </description>
          <type>String</type>
        </field>
      </fields>
    </class>

		jbytes, err := json.Marshal(healSequenceStatus{
			Summary: healFinishedStatus,
		})
		return jbytes, toAdminAPIErrCode(GlobalContext, err)
	}

	// Check if client-token is valid
	if clientToken != h.clientToken {
		return nil, ErrHealInvalidClientToken
	}

	// Take lock to access and update the heal-sequence
	h.mutex.Lock()
	defer h.mutex.Unlock()

      assertTrue(
          IntMath.biggestBinomials[k] == Integer.MAX_VALUE
              || !fitsInInt(BigIntegerMath.binomial(IntMath.biggestBinomials[k] + 1, k)));
      // In the first case, any int is valid; in the second, we want to test that the next-bigger
      // int overflows.
    }
    assertFalse(
        fitsInInt(
            BigIntegerMath.binomial(

		case guessHas:
			schema.guessRelation(relation, field, guessEmbeddedHas)
		// case guessEmbeddedHas:
		default:
			schema.err = fmt.Errorf("invalid field found for struct %v's field %s: define a valid foreign key for relations or implement the Valuer/Scanner interface",
				schema, field.Name)
		}
	}

	switch gl {
	case guessBelongs:
		primarySchema, foreignSchema = relation.FieldSchema, schema