Typeflag: TypeSymlink,
		},
		fm: 0777 | fs.ModeSymlink,
	}, {
		// character device node.
		h: &Header{
			Name:     "dev/null",
			Mode:     0666,
			Size:     0,
			ModTime:  time.Unix(1360578951, 0),
			Typeflag: TypeChar,
		},
		fm: 0666 | fs.ModeDevice | fs.ModeCharDevice,
	}, {
		// block device node.
		h: &Header{
			Name:     "dev/sda",
			Mode:     0660,
			Size:     0,

    assertThat(connection.isHealthy(System.nanoTime())).isTrue()

    // But if the ping doesn't arrive, the connection goes unhealthy.
    Thread.sleep(TimeUnit.NANOSECONDS.toMillis(Http2Connection.DEGRADED_PONG_TIMEOUT_NS.toLong()))
    assertThat(connection.isHealthy(System.nanoTime())).isFalse()

    // When a pong does arrive, the connection becomes healthy again.
    connection.writePingAndAwaitPong()

                ],
            ),
        ):
            return item

    # TODO: enable these tests once/if Form(embed=False) is supported
    # TODO: In that case, define if File() should support example/examples too
    # @app.post("/form_example")
    # def form_example(firstname: str = Form(example="John")):
    #     return firstname

    # @app.post("/form_examples")

# Handling Errors

There are many situations in which you need to notify an error to a client that is using your API.

This client could be a browser with a frontend, a code from someone else, an IoT device, etc.

You could need to tell the client that:

* The client doesn't have enough privileges for that operation.
* The client doesn't have access to that resource.
* The item the client was trying to access doesn't exist.
* etc.

errors.app.double.submit.request=Your request might have been processed before this request. Please check and retry it.

# _/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
# you can define your messages here:
# e.g.
#  errors.xxx = ...
#  info.xxx = ...
# _/_/_/_/_/_/_/_/_/_/
# ========================================================================================

errors.app.double.submit.request=Your request might have been processed before this request. Please check and retry it.

# _/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
# you can define your messages here:
# e.g.
#  errors.xxx = ...
#  info.xxx = ...
# _/_/_/_/_/_/_/_/_/_/
# ========================================================================================

	compPadEncrypted = 256
	// Disable compressed file indices below this size
	compMinIndexSize = 8 << 20
)

// getkeyeparator - returns the separator to be used for
// persisting on drive.
//
// - ":" is used on non-windows platforms
// - "_" is used on windows platforms
func getKeySeparator() string {
	if runtime.GOOS == globalWindowsOSName {
		return "_"
	}
	return ":"
}

                    .build());
            options.addOption(Option.builder(USER_PROPERTY)
                    .numberOfArgs(2)
                    .valueSeparator('=')
                    .desc("Define a user property")
                    .build());
            options.addOption(Option.builder(SHOW_VERSION_AND_EXIT)
                    .longOpt("version")
                    .desc("Display version information")

```Python hl_lines="7"
{!> ../../docs_src/query_params_str_validations/tutorial003_py310.py!}
```

////

## 🚮 🥔 🧬

👆 💪 🔬 <abbr title="A regular expression, regex or regexp is a sequence of characters that define a search pattern for strings.">🥔 🧬</abbr> 👈 🔢 🔜 🏏:

//// tab | 🐍 3️⃣.6️⃣ &amp; 🔛

```Python hl_lines="11"
{!> ../../docs_src/query_params_str_validations/tutorial004.py!}
```

////

 * all elements in priority order and place them in another collection.
 *
 * <p>Operations on this class make no guarantees about the ordering of elements with equal
 * priority. If you need to enforce an ordering, you can define custom classes or comparators that
 * use a secondary key to break ties in primary priority values. For example, here is a class that
 * applies first-in-first-out tie-breaking to comparable elements. To use it, you would insert a