// https://www.iana.org/domains/root/db/obi.html
obi

// observer : Fegistry, LLC
// https://www.iana.org/domains/root/db/observer.html
observer

// office : Microsoft Corporation
// https://www.iana.org/domains/root/db/office.html
office

// okinawa : BRregistry, Inc.
// https://www.iana.org/domains/root/db/okinawa.html
okinawa

// olayan : Competrol (Luxembourg) Sarl

"_[...] I'm using **FastAPI** a ton these days. [...] I'm actually planning to use it for all of my team's **ML services at Microsoft**. Some of them are getting integrated into the core **Windows** product and some **Office** products._"

<div style="text-align: right; margin-right: 10%;">Kabir Khan - <strong>Microsoft</strong> <a href="https://github.com/fastapi/fastapi/pull/26"><small>(ref)</small></a></div>

---

{* ../../docs_src/query_params_str_validations/tutorial006_an_py310.py hl[9] *}

### Required, can be `None` { #required-can-be-none }

You can declare that a parameter can accept `None`, but that it's still required. This would force clients to send a value, even if the value is `None`.

To do that, you can declare that `None` is a valid type but simply do not declare a default value:

query.highlight.boundary.max.scan=20
# Scanner type for query highlight boundaries.
query.highlight.boundary.scanner=chars
# Encoder type for query highlighting.
query.highlight.encoder=default
# Whether to force source for query highlighting.
query.highlight.force.source=false
# Fragmenter type for query highlighting.
query.highlight.fragmenter=span
# Offset for query highlight fragments.
query.highlight.fragment.offset=-1

 * </ul>
 *
 * <p>Disadvantages compared to {@code long[]}:
 *
 * <ul>
 *   <li>Memory footprint has a fixed overhead (about 24 bytes per instance).
 *   <li><i>Some</i> construction use cases force the data to be copied (though several construction
 *       APIs are offered that don't).
 *   <li>Can't be passed directly to methods that expect {@code long[]} (though the most common
 *       utilities do have replacements here).

            assertFalse(testBlock.isUseUnicode());
            testBlock.setUseUnicode(true);
            assertTrue(testBlock.isUseUnicode());
        }

        @Test
        @DisplayName("Test force unicode property")
        void testForceUnicodeProperty() {
            assertFalse(testBlock.isForceUnicode());
        }

        @Test
        @DisplayName("Test extended security property")

<!-- /sponsors -->

[其他赞助商](https://fastapi.tiangolo.com/zh/fastapi-people/#sponsors)

## 评价 { #opinions }

「_[...] 最近我大量使用 **FastAPI**。[...] 我实际上计划把它用于我团队在 **微软** 的所有 **机器学习服务**。其中一些正在集成进核心 **Windows** 产品以及一些 **Office** 产品。_」

<div style="text-align: right; margin-right: 10%;">Kabir Khan - <strong>Microsoft</strong> <a href="https://github.com/fastapi/fastapi/pull/26"><small>(ref)</small></a></div>

---

                
            case FILE_REMOVED:
                entry.removeChild(childName);
                break;
                
            case FILE_MODIFIED:
                // Remove from cache to force refresh
                entry.removeChild(childName);
                break;
                
            case DIRECTORY_RENAMED:
                // Full invalidation needed
                entry.invalidate();

	ZFNMLA Z0.H, Z2.H, P0.M, Z14.H                    // 4e406065
	ZFNMLS Z0.H, Z2.H, P0.M, Z14.H                    // 4e606065
	ZFNMSB Z0.H, Z2.H, P0.M, Z14.H                    // 4ee06065
	ZFRECPE Z1.S, Z26.S                               // 3a308e65
	ZFRECPS Z7.D, Z23.D, Z13.D                        // ed1ac765
	ZFRECPX Z7.D, P4.M, Z13.D                         // edb0cc65

	ZFNMLS Z1.S, Z26.S, P14.M, Z7.D                   // ERROR "illegal combination from SVE"
	ZFNMSB Z1.S, Z26.S, P14.M, Z7.D                   // ERROR "illegal combination from SVE"
	ZFRECPE Z11.B, Z7.D                               // ERROR "illegal combination from SVE"
	ZFRECPS Z1.S, Z26.S, Z11.B                        // ERROR "illegal combination from SVE"