private final WitnessVersion version;
    private final long registrationTime;
    private final AtomicLong sequenceNumber;
    private byte[] contextHandle;

    // Registration flags
    /** No special registration flags */
    public static final int WITNESS_REGISTER_NONE = 0x00000000;
    /** Register for IP address change notifications */
    public static final int WITNESS_REGISTER_IP_NOTIFICATION = 0x00000001;

  open fun contentLength(): Long = -1L

  /** Writes the content of this request to [sink]. */
  @Throws(IOException::class)
  abstract fun writeTo(sink: BufferedSink)

  /**
   * A duplex request body is special in how it is **transmitted** on the network and
   * in the **API contract** between OkHttp and the application.
   *
   * This method returns false unless it is overridden by a subclass.
   *
   * ### Duplex Transmission

        assertEquals(unicodeFileName, decodedName);
        assertEquals(20 + nameLength, bytesWritten);
    }

    @Test
    @DisplayName("Test with special characters in filename")
    void testWithSpecialCharactersInFilename() throws SMBProtocolDecodingException {
        String specialFileName = "file!@#$%^&*().txt";

                longMessage.append("This is a very long error message. ");
            }
            WebApiUtil.setError(500, longMessage.toString());

            // Test with special characters in message
            WebApiUtil.setError(400, "Error with special chars: àáâãäåæçèéêë ñ 中文 🚀");

        } catch (Exception e) {
            fail("Error handling should work with edge cases: " + e.getMessage());
        }
    }

            bb.get(encodedPath);
            assertArrayEquals(pathBytes, encodedPath);
        }

        @Test
        @DisplayName("Should encode special characters in path")
        void testEncodeSpecialCharactersPath() {
            String path = "\\\\server\\share$\\@special!\\#test";
            int maxReferralLevel = 2;
            buffer = new DfsReferralRequestBuffer(path, maxReferralLevel);

        }

        @ParameterizedTest
        @DisplayName("getBytes should handle various string inputs")
        @NullAndEmptySource
        @ValueSource(strings = { "Simple ASCII", "Special chars: !@#$%^&*()", "Unicode: ñöt ascii ℃", "Mixed: ASCII + 中文 + Русский",
                "Emojis: 🎉🌟💻", "Very long string with multiple words and various characters 1234567890" })

        assertEquals("1", searchRenderData.getPageNumberList().get(0));
        assertEquals("5", searchRenderData.getPageNumberList().get(4));

        // Test with list containing special values
        List<String> specialPages = Arrays.asList("...", "10", "11", "12", "...");
        searchRenderData.setPageNumberList(specialPages);
        assertEquals(specialPages, searchRenderData.getPageNumberList());

By default, **FastAPI** will then expect its body directly.

But if you want it to expect a JSON with a key `item` and inside of it the model contents, as it does when you declare extra body parameters, you can use the special `Body` parameter `embed`:

```Python
item: Item = Body(embed=True)
```

as in:

{* ../../docs_src/body_multiple_params/tutorial005_an_py310.py hl[17] *}

    exit 1
fi

if [ -z "$FESS_CLASSPATH" ]; then
    echo "You must set the FESS_CLASSPATH var" >&2
    exit 1
fi

# Special-case path variables.
case `uname` in
    CYGWIN*)
        FESS_CLASSPATH=`cygpath -p -w "$FESS_CLASSPATH"`
        FESS_HOME=`cygpath -p -w "$FESS_HOME"`
        if [ "x$FESS_CONF_PATH" != "x" ] ; then

But when you import `Query`, `Path`, `Depends`, `Security` and others from `fastapi`, those are actually functions that return special classes.

///

## Use `SecurityScopes` { #use-securityscopes }

Now update the dependency `get_current_user`.

This is the one used by the dependencies above.