<img src="/img/tutorial/dependencies/image01.png">

## Simple usage { #simple-usage }

If you look at it, *path operation functions* are declared to be used whenever a *path* and *operation* matches, and then **FastAPI** takes care of calling the function with the correct parameters, extracting the data from the request.

Actually, all (or most) of the web frameworks work in this same way.

Similarly, you cannot redefine a path operation:

{* ../../docs_src/path_params/tutorial003b_py39.py hl[6,11] *}

The first one will always be used since the path matches first.

## Predefined values { #predefined-values }

          when (record.loggerName) {
            TaskRunner::class.java.name -> recordTaskRunner
            Http2::class.java.name -> recordFrames
            "javax.net.ssl" -> recordSslDebug && !sslExcludeFilter.matches(record.message)
            else -> false
          }

        if (recorded) {
          synchronized(clientEventsList) {
            clientEventsList.add(record.message)

        System.arraycopy(buffer, 8, copiedFileId, 0, 16);
        assertArrayEquals(expectedFileId, copiedFileId);
    }

    @Test
    @DisplayName("Test wire format structure matches SMB2 specification")
    void testWireFormatStructure() {
        byte[] buffer = new byte[256];
        Arrays.fill(buffer, (byte) 0xCC); // Fill with pattern to detect unwritten areas

        // Decode
        response.decode(buffer, 0, 24);

        // Get the server GUID
        byte[] returnedGuid = response.getServerGuid();

        // Verify it matches original
        assertArrayEquals(originalGuid, returnedGuid, "Returned GUID should match original");

        // Test that the same reference is returned (implementation detail)

 * It also provides methods to add custom features and properties to the {@link DOMParser}.
 * </p>
 * <p>
 * The encoding of the HTML document is automatically detected using a regular expression that matches the charset attribute in the meta tag.
 * </p>
 *
 */
public class HtmlXpathExtractor extends AbstractXmlExtractor {
    /**

 * available online).
 * <p>
 * Direct ACEs are evaluated first in order. The SID of the user performing
 * the operation and the desired access bits are compared to the SID
 * and access mask of each ACE. If the SID matches, the allow/deny flags
 * and access mask are considered. If the ACE is a "deny"
 * ACE and <i>any</i> of the desired access bits match bits in the access
 * mask of the ACE, the whole access check fails. If the ACE is an "allow"

func fixLongPath(path string) string {
	// Do nothing (and don't allocate) if the path is "short".
	// Empirically (at least on the Windows Server 2013 builder),
	// the kernel is arbitrarily okay with < 248 bytes. That
	// matches what the docs above say:
	// "When using an API to create a directory, the specified
	// path cannot be so long that you cannot append an 8.3 file
	// name (that is, the directory name cannot exceed MAX_PATH

                    int startOffset = text.indexOf(word, offset);
                    int endOffset = startOffset + word.length();

                    // Handle decimal numbers
                    if (word.matches("\\d+") && startOffset > 0 && text.charAt(startOffset - 1) == '.') {
                        continue;
                    }

                rawType.isPrimitive() ? Key.get(rawType).getTypeLiteral() : toType;

        for (final TypeConverterBinding b : typeConverterBindings) {
            if (b.getTypeMatcher().matches(boxedType)) {
                return b.getTypeConverter().convert(text, toType);
            }
        }

        // last chance => attempt to create an instance of the expected type: use the string if non-empty