}

    /**
     * Checks if a label with the specified key exists in the current request's label map.
     *
     * @param value the label key to check
     * @return true if the label exists, false otherwise
     */
    public static Boolean labelExists(final String value) {
        return LaRequestUtil.getOptionalRequest().map(req -> {
            @SuppressWarnings("unchecked")

         *
         * @return true if there is a previous page, false otherwise
         */
        public boolean isExistPrePage() {
            return currentPageNumber != 1;
        }

        /**
         * Checks if a next page exists.
         *
         * @return true if there is a next page, false otherwise
         */
        public boolean isExistNextPage() {

     * Multi-word values are wrapped in double quotes with internal quotes replaced by spaces.
     *
     * @param value the string value to quote
     * @return the quoted string if it contains spaces, otherwise the original value
     */
    protected String quote(final String value) {
        if (value.split("\\s").length > 1) {
            return new StringBuilder().append('"').append(value.replace('"', ' ')).append('"').toString();

   * Returns an array containing all of the elements in the specified collection; the runtime type
   * of the returned array is that of the specified array. If the collection fits in the specified
   * array, it is returned therein. Otherwise, a new array is allocated with the runtime type of the
   * specified array and the size of the specified collection.
   *
   * <p>If the collection fits in the specified array with room to spare (i.e., the array has more

cygwin=false
darwin=false
mingw=false
case "$(uname)" in
CYGWIN*) cygwin=true ;;
MINGW*) mingw=true ;;
Darwin*)
  darwin=true
  # Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home
  # See https://developer.apple.com/library/mac/qa/qa1170/_index.html
  if [ -z "$JAVA_HOME" ]; then
    if [ -x "/usr/libexec/java_home" ]; then
      JAVA_HOME="$(/usr/libexec/java_home)"

        this.timeout = timeout;
        return this;
    }

    /**
     * Sets whether to use local Fesen instance.
     *
     * @param useLocalFesen true to use local Fesen, false otherwise
     * @return this ExecJob instance for method chaining
     */
    public ExecJob useLocalFesen(final boolean useLocalFesen) {
        this.useLocalFesen = useLocalFesen;
        return this;
    }

 * <h3>For Java 8+ users</h3>
 *
 * <p>This interface is now a legacy type. Use {@code java.util.function.Supplier} (or the
 * appropriate primitive specialization such as {@code IntSupplier}) instead whenever possible.
 * Otherwise, at least reduce <i>explicit</i> dependencies on this type by using lambda expressions
 * or method references instead of classes, leaving your code easier to migrate in the future.
 *

        }

        return kanaBuf.toString();
    }

    /**
     * Checks if the tokenizer is enabled.
     * @param factory The tokenizer factory.
     * @return True if the tokenizer is enabled, false otherwise.
     */
    protected boolean isEnableTokenizer(final TokenizerFactory factory) {
        // TODO return factory instanceof JapaneseTokenizerFactory;
        return false;
    }

// if one of the args do not meet the required conditions.
// Special conditions required by MinIO server are as below
//   - delimiter if set should be equal to '/', otherwise the request is rejected.
//   - marker if set should have a common prefix with 'prefix' param, otherwise
//     the request is rejected.
func validateListObjectsArgs(prefix, marker, delimiter, encodingType string, maxKeys int) APIErrorCode {
	// Max keys cannot be negative.

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

///

/// info

To declare headers, you need to use `Header`, because otherwise the parameters would be interpreted as query parameters.

///

## Automatic conversion { #automatic-conversion }

`Header` has a little extra functionality on top of what `Path`, `Query` and `Cookie` provide.