which is designed to persist between app restarts.

```kotlin
cache.delete()
```

## Pruning the Cache

Pruning the entire Cache to clear space temporarily can be done using evictAll.

```kotlin
cache.evictAll()
```

Removing individual items can be done using the urls iterator.

    throw up();
  }

  @Override
  public boolean retainAll(Collection<?> elementsToRetain) {
    throw up();
  }

  @Override
  public void clear() {
    throw up();
  }

  private static UnsupportedOperationException up() {
    throw new UnsupportedOperationException();
  }

     * either it got collected, or {@link #clear} was called, or it wasn't set in the first place).
     */
    @Nullable V get();

    /** Returns the entry which contains this {@link WeakValueReference}. */
    E getEntry();

    /** Unsets the referenced value. Subsequent calls to {@link #get} will return {@code null}. */
    void clear();

    /**

    }

    @Override
    public boolean contains(@Nullable Object o) {
      return AbstractMultimap.this.containsValue(o);
    }

    @Override
    public void clear() {
      AbstractMultimap.this.clear();
    }
  }

  Iterator<V> valueIterator() {
    return Maps.valueIterator(entries().iterator());
  }

  @LazyInit private transient @Nullable Map<K, Collection<V>> asMap;

      size -= oldCount;
    } else {
      backingMap.setValue(entryIndex, newCount);
      size += newCount - oldCount;
    }
    return true;
  }

  @Override
  public final void clear() {
    backingMap.clear();
    size = 0;
  }

  /**
   * Skeleton of per-entry iterators. We could push this down and win a few bytes, but it's complex
   * enough it's not especially worth it.
   */

    }

    @Override
    public boolean addAll(int index, Collection<? extends T> elements) {
      return standardAddAll(index, elements);
    }

    @Override
    public void clear() {
      standardClear();
    }

    @Override
    public boolean contains(Object object) {
      return standardContains(object);
    }

    @Override

    }

    @Override
    public boolean addAll(int index, Collection<? extends T> elements) {
      return standardAddAll(index, elements);
    }

    @Override
    public void clear() {
      standardClear();
    }

    @Override
    public boolean contains(Object object) {
      return standardContains(object);
    }

    @Override

        out.println("<a class=\"sort\" href=\"?fmt=detail&sort=type\">Type</a>");
        out.println("<a class=\"sort\" style=\"width: 180\" href=\"?fmt=detail&sort=date\">Modified</a><br clear='all'><p>");

        path = dir.getCanonicalPath();

        if (path.length() < 7) {
            out.println("<b><big>smb1://</big></b><br>");
            path = ".";
        } else {

      return standardHashCode();
    }

    @Override
    public boolean addAll(Collection<? extends T> collection) {
      return standardAddAll(collection);
    }

    @Override
    public void clear() {
      standardClear();
    }

    @Override
    public boolean contains(Object object) {
      return standardContains(object);
    }

    @Override

			if err != nil {
				err = msgp.WrapError(err, "StaticLabels")
				return
			}
			if z.StaticLabels == nil {
				z.StaticLabels = make(map[string]string, zb0002)
			} else if len(z.StaticLabels) > 0 {
				clear(z.StaticLabels)
			}
			for zb0002 > 0 {
				var za0002 string
				zb0002--
				var za0001 string
				za0001, bts, err = msgp.ReadStringBytes(bts)
				if err != nil {