}
        }

        val subProjectTestClassTimes: List<SubprojectTestClassTime> = subProjectToClassTimes
            .entries
            .filter { "UNKNOWN" != it.key }
            .filter { model.subprojects.getSubprojectByName(it.key) != null }

```

由于我们必须用 `Query(default=None)` 替换默认值 `None`，`Query` 的第一个参数同样也是用于定义默认值。

所以：

```Python
q: Union[str, None] = Query(default=None)
```

...使得参数可选，等同于：

```Python
q: str = None
```

但是 `Query` 显式地将其声明为查询参数。

然后，我们可以将更多的参数传递给 `Query`。在本例中，适用于字符串的 `max_length` 参数：

```Python
q: Union[str, None] = Query(default=None, max_length=50)
```

将会校验数据，在数据无效时展示清晰的错误信息，并在 OpenAPI 模式的*路径操作*中记录该参​​数。

		}
	}

	if metadata == nil {
		metadata = make(map[string]string)
	}

	wantCRC, err := hash.GetContentChecksum(hdr)
	if err != nil {
		return opts, fmt.Errorf("invalid/unknown checksum sent: %v", err)
	}
	etag := strings.TrimSpace(hdr.Get(xhttp.MinIOSourceETag))

	if crypto.S3KMS.IsRequested(hdr) {
		keyID, context, err := crypto.S3KMS.ParseHTTP(hdr)
		if err != nil {

                        final PluginHelper pluginHelper = ComponentUtil.getPluginHelper();
                        final Artifact artifact =
                                pluginHelper.getArtifactFromFileName(ArtifactType.UNKNOWN, filename, tempFile.getAbsolutePath());
                        pluginHelper.installArtifact(artifact);
                    } catch (final Exception e) {
                        logger.warn("Failed to install {}", filename, e);

            }
            return convertTermQuery(context, termQuery, boost);
        }
        throw new InvalidQueryException(messages -> messages.addErrorsInvalidQueryUnknown(UserMessages.GLOBAL_PROPERTY_KEY),
                "Unknown q: " + query.getClass() + " => " + query);
    }

    protected QueryBuilder convertTermQuery(final QueryContext context, final TermQuery termQuery, final float boost) {

echo -e "OUTPUT_FORMAT(elf64-littleaarch64)\nINPUT ( libstdc++.so.6.0.18 -lstdc++_nonshared44 )" \
   > "${TARGET}/usr/lib64/libstdc++.so.${LIBSTDCXX_VERSION}"
cp "./aarch64-unknown-linux-gnu/libstdc++-v3/src/.libs/libstdc++_nonshared44.a" \
   "${TARGET}/usr/lib64"


# Link in architecture specific includes from the system; note that we cannot

# Where component owners are known, add them here.

/tensorflow/c/eager @qqfish
/tensorflow/core/common_runtime/eager @qqfish
/tenosrflow/core/debug @caisq
/tensorflow/core/kernels/mkl/ @penpornk
/tensorflow/core/kernels/sparse/ @penpornk
/tensorflow/core/nccl/ @azaks2 @chsigg
/tensorflow/python/autograph/ @mdanatg
/tensorflow/python/debug @caisq
/tensorflow/python/eager @rohan100jain
/tensorflow/tools/docs/ @markdaoust

	// We can expect to receive unblocks for closed muxes
	if debugPrint {
		fmt.Println(c.Local, "Unblock: Unknown Mux:", m.MuxID)
	}
}

func (c *Connection) handleMuxClientMsg(ctx context.Context, m message) {
	v, ok := c.inStream.Load(m.MuxID)
	if !ok {
		if debugPrint {
			fmt.Println(c.Local, "OpMuxClientMsg: Unknown Mux:", m.MuxID)
		}
		gridLogIf(ctx, c.queueMsg(message{Op: OpDisconnectClientMux, MuxID: m.MuxID}, nil))

		pieces := strings.Split(configPath, "/")
		if len(pieces) != 8 {
			return ""
		}
		return fmt.Sprintf("%s.%s", pieces[7], pieces[5])
	}
	return "<unknown>"
}

// PrintRouteDump prints the relevant routes in the config dump to the ConfigWriter stdout
func (c *ConfigWriter) PrintRouteDump(filter RouteFilter, outputFormat string) error {

* `main.py` adında bir dosya oluşturup içine şu kodu yapıştıralım:

```Python
from typing import Union

from fastapi import FastAPI

app = FastAPI()


@app.get("/")
def read_root():
    return {"Hello": "World"}


@app.get("/items/{item_id}")
def read_item(item_id: int, q: Union[str, None] = None):
    return {"item_id": item_id, "q": q}
```

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