reverse = true;
            test = test.substring(1);
        }

        boolean result = Os.OS_VERSION.equals(test);

        if (reverse) {
            return !result;
        } else {
            return result;
        }
    }

    private boolean determineArchMatch(String arch) {
        String test = arch;
        boolean reverse = false;

        if (test.startsWith("!")) {

        return map.headMap(lastInclusive, true);
      } else if (from == Bound.EXCLUSIVE && to == Bound.NO_BOUND) {
        return map.tailMap(firstExclusive, false);
      } else if (from == Bound.EXCLUSIVE && to == Bound.EXCLUSIVE) {
        return map.subMap(firstExclusive, false, lastExclusive, false);
      } else if (from == Bound.EXCLUSIVE && to == Bound.INCLUSIVE) {

            if (other.value1 != null) {
                return false;
            }
        } else if (!value1.equals(other.value1)) {
            return false;
        }
        if (value2 == null) {
            if (other.value2 != null) {
                return false;
            }
        } else if (!value2.equals(other.value2)) {
            return false;
        }
        if (value3 == null) {

			got = reflect.ValueOf(got).Convert(reflect.ValueOf(expect).Type()).Interface()
			isEqual()
		} else if reflect.ValueOf(expect).Type().ConvertibleTo(reflect.ValueOf(got).Type()) {
			expect = reflect.ValueOf(got).Convert(reflect.ValueOf(got).Type()).Interface()
			isEqual()
		} else {
			t.Errorf("%v: expect: %+v, got %+v", utils.FileWithLineNum(), expect, got)
			return
		}
	}
}

    if (proxy.type() == Proxy.Type.SOCKS) {
      mutableInetSocketAddresses += InetSocketAddress.createUnresolved(socketHost, socketPort)
    } else {
      val addresses =
        if (socketHost.canParseAsIpAddress()) {
          listOf(InetAddress.getByName(socketHost))
        } else {
          connectionUser.dnsStart(socketHost)

          val result = address.dns.lookup(socketHost)
          if (result.isEmpty()) {

		if offsetBeginString[0] == '+' {
			return nil, fmt.Errorf("Byte position ('%s') must not have a sign", offsetBeginString)
		} else if offsetBegin, err = strconv.ParseInt(offsetBeginString, 10, 64); err != nil {
			return nil, fmt.Errorf("'%s' does not have a valid first byte position value", rangeString)
		} else if offsetBegin < 0 {
			return nil, fmt.Errorf("First byte position is negative ('%d')", offsetBegin)
		}
	}

            }
          }
          collide = false;
        } else if (!wasUncontended) // CAS already known to fail
        wasUncontended = true; // Continue after rehash
        else if (a.cas(v = a.value, fn(v, x))) break;
        else if (n >= NCPU || cells != as) collide = false; // At max size or stale
        else if (!collide) collide = true;
        else if (busy == 0 && casBusy()) {
          try {

	}

	harumph := Harumph{Email: "******@****.***"}
	if err := DB.Create(&harumph).Error; err != nil {
		t.Fatalf("Failed to create data with default value, got error: %v", err)
	} else if harumph.Name != "foo" || harumph.Name2 != "foo" || harumph.Name3 != "" || harumph.Age != 18 || !harumph.Enabled || harumph.Created.Format("20060102") != "20000102" {
		t.Fatalf("Failed to create data with default value, got: %+v", harumph)

        ManagedVersionMap versionMap;
        if (managedVersions instanceof ManagedVersionMap managedVersionMap) {
            versionMap = managedVersionMap;
        } else {
            versionMap = new ManagedVersionMap(managedVersions);
        }

        // remove the originating artifact if it is also in managed versions to avoid being modified during resolution

```Python
= Query(default=None)
```

ya que usará ese `None` como el valor por defecto, y de esa manera hará el parámetro **no requerido**.

La parte `Union[str, None]` permite que tu editor brinde un mejor soporte, pero no es lo que le dice a FastAPI que este parámetro no es requerido.

///

Luego, podemos pasar más parámetros a `Query`. En este caso, el parámetro `max_length` que se aplica a los strings:

```Python