<?xml version="1.0"?>

<!--
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements.  See the NOTICE file
distributed with this work for additional information
regarding copyright ownership.  The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License.  You may obtain a copy of the License at

def get_query_type_optional(query: Optional[int] = None):
    if query is None:
        return "foo bar"
    return f"foo bar {query}"


@app.get("/query/int/default")
def get_query_type_int_default(query: int = 10):
    return f"foo bar {query}"


@app.get("/query/param")
def get_query_param(query=Query(default=None)):
    if query is None:
        return "foo bar"
    return f"foo bar {query}"

	}

	tries++ // tried already once

	// Wait on each try for an update.
	ticker := time.NewTicker(1 * time.Second)
	defer ticker.Stop()

	for {
		// Only log once every 10 iterations, then reset the tries count.
		verbose = tries >= 10
		if verbose {
			tries = 1
		}

		format, err = connectLoadInitFormats(verbose, firstDisk, storageDisks, endpoints, poolCount, setCount, setDriveCount, deploymentID)

所以，我们可以将上面的依赖项 "可依赖对象" `common_parameters` 更改为类 `CommonQueryParams`:

{* ../../docs_src/dependencies/tutorial002_py310.py hl[9:13] *}

注意用于创建类实例的 `__init__` 方法：

{* ../../docs_src/dependencies/tutorial002_py310.py hl[10] *}

...它与我们以前的 `common_parameters` 具有相同的参数：

{* ../../docs_src/dependencies/tutorial001_py310.py hl[6] *}

这些参数就是 **FastAPI** 用来 "处理" 依赖项的。

在两个例子下，都有：

* 一个可选的 `q` 查询参数，是 `str` 类型。

//   notify:
//     endpoint: "https://notify.endpoint" # notification endpoint to receive job status events
//     token: "Bearer xxxxx" # optional authentication token for the notification endpoint

//   retry:
//     attempts: 10 # number of retries for the job before giving up
//     delay: "500ms" # least amount of delay between each retry

//go:generate msgp -file $GOFILE -unexported

// BatchKeyRotationType defines key rotation type

## Add more validations { #add-more-validations }

You can also add a parameter `min_length`:

{* ../../docs_src/query_params_str_validations/tutorial003_an_py310.py hl[10] *}

## Add regular expressions { #add-regular-expressions }

        if (metadataFile.length() == 0) {
            if (!metadataFile.delete()) {
                // sleep for 10ms just in case this is windows holding a file lock
                try {
                    Thread.sleep(10);
                } catch (InterruptedException e) {
                    // ignore
                }
                metadataFile.delete(); // if this fails, forget about it, we'll try to overwrite it anyway so no need

            }
        ]
    }


def test_query_int_default():
    response = client.get("/query/int/default")
    assert response.status_code == 200
    assert response.json() == "foo bar 10"


def test_query_int_default_query_50():
    response = client.get("/query/int/default?query=50")
    assert response.status_code == 200
    assert response.json() == "foo bar 50"

		bucket:       "bucket",
		root:         "folder/prefix",
		recursive:    true,
		status:       scanStateSuccess,
		fileNotFound: false,
		error:        "",
		started:      metaCacheTestsetTimestamp.Add(-10 * time.Minute),
		ended:        metaCacheTestsetTimestamp.Add(-8 * time.Minute),
		lastUpdate:   metaCacheTestsetTimestamp.Add(-8 * time.Minute),
		lastHandout:  metaCacheTestsetTimestamp,

<?xml version="1.0" encoding="UTF-8"?>
<!--
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements.  See the NOTICE file
distributed with this work for additional information
regarding copyright ownership.  The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License.  You may obtain a copy of the License at