prefix = zipUrlString.substring(warUrl.toExternalForm().length());
                    loadFromZip(zipUrl);
                }
            }

            this.rootPackage = rootPackage;
            this.rootDir = rootDir;
            this.zipUrl = zipUrl;
            this.prefix = prefix;
        }

        private void loadFromZip(final URL zipUrl) {

        private String lastScript;
        private Map<String, Object> lastParams;
        private final String prefix;

        public TestScriptEngine() {
            this.prefix = "";
        }

        public TestScriptEngine(String prefix) {
            this.prefix = prefix + ":";
        }

        @Override
        public Object evaluate(String template, Map<String, Object> paramMap) {

    return new String(array);
  }

  /**
   * Returns the longest string {@code prefix} such that {@code a.toString().startsWith(prefix) &&
   * b.toString().startsWith(prefix)}, taking care not to split surrogate pairs. If {@code a} and
   * {@code b} have no common prefix, returns the empty string.
   *
   * @since 11.0
   */
  public static String commonPrefix(CharSequence a, CharSequence b) {

      Float[] prefix = {86.0f, 99.0f};
      Float[] all = concat(prefix, elements);
      return asList(all).subList(2, elements.length + 2);
    }
  }

  public static final class FloatsAsListMiddleSubListGenerator extends TestFloatListGenerator {
    @Override
    protected List<Float> create(Float[] elements) {
      Float[] prefix = {Float.MIN_VALUE, Float.MAX_VALUE};

      Float[] prefix = {86.0f, 99.0f};
      Float[] all = concat(prefix, elements);
      return asList(all).subList(2, elements.length + 2);
    }
  }

  public static final class FloatsAsListMiddleSubListGenerator extends TestFloatListGenerator {
    @Override
    protected List<Float> create(Float[] elements) {
      Float[] prefix = {Float.MIN_VALUE, Float.MAX_VALUE};

      Integer[] prefix = {(int) 86, (int) 99};
      Integer[] all = concat(prefix, elements);
      return asList(all).subList(2, elements.length + 2);
    }
  }

  public static final class IntsAsListMiddleSubListGenerator extends TestIntegerListGenerator {
    @Override
    protected List<Integer> create(Integer[] elements) {
      Integer[] prefix = {Integer.MIN_VALUE, Integer.MAX_VALUE};

      Double[] prefix = {86.0, 99.0};
      Double[] all = concat(prefix, elements);
      return asList(all).subList(2, elements.length + 2);
    }
  }

  public static final class DoublesAsListMiddleSubListGenerator extends TestDoubleListGenerator {
    @Override
    protected List<Double> create(Double[] elements) {
      Double[] prefix = {Double.MIN_VALUE, Double.MAX_VALUE};

        assertArgumentNotNull("prefix", prefix);
        assertArgumentNotNull("handler", handler);

        final int startPos = prefix.length();
        for (final JarEntry entry : iterable(jarFile.entries())) {
            final String entryName = entry.getName().replace('\\', '/');
            if (entryName.startsWith(prefix) && entryName.endsWith(CLASS_SUFFIX)) {

As the path of each *path operation* has to start with `/`, like in:

```Python hl_lines="1"
@router.get("/{item_id}")
async def read_item(item_id: str):
    ...
```

...the prefix must not include a final `/`.

So, the prefix in this case is `/items`.

We can also add a list of `tags` and extra `responses` that will be applied to all the *path operations* included in this router.

        if (StringUtil.isBlank(virtualHostKey)) {
            return null;
        }
        final String prefix = "/" + virtualHostKey;
        if (requestPath.startsWith(prefix)) {
            return requestPath.substring(prefix.length());
        }
        return null;
    }

    @Override
    public String toString() {