// We special-case for 0 or 1 elements, but anything further is madness.
    if (!elements.hasNext()) {
      return of();
    }
    E first = elements.next();
    if (!elements.hasNext()) {
      return of(first);
    } else {
      return new ImmutableSet.Builder<E>().add(first).addAll(elements).build();
    }
  }

  /**

		case "current":
			z.current, bts, err = msgp.ReadUint64Bytes(bts)
			if err != nil {
				err = msgp.WrapError(err, "current")
				return
			}
		case "next":
			z.next, bts, err = msgp.ReadUint64Bytes(bts)
			if err != nil {
				err = msgp.WrapError(err, "next")
				return
			}
		case "started":
			z.started, bts, err = msgp.ReadTimeBytes(bts)
			if err != nil {
				err = msgp.WrapError(err, "started")

      try {
        map = makePopulatedMap();
      } catch (UnsupportedOperationException e) {
        return;
      }
      String keyToRemove = map.keySet().iterator().next();
      if (supportsRemove) {
        int initialSize = map.size();
        // var oldValue = map.get(keyToRemove);
        map.remove(keyToRemove);
        // This line doesn't hold - see the Javadoc comments above.

		return true
	}
	i := 0
	// Skip leading slashes (for sake of Windows \ is included as well)
	for i < n && (path[i] == SlashSeparatorChar || path[i] == '\\') {
		i++
	}

	for i < n {
		// Find the next segment
		start := i
		for i < n && path[i] != SlashSeparatorChar && path[i] != '\\' {
			i++
		}

		// Trim whitespace of segment
		segmentStart, segmentEnd := start, i

        final List<Traverser> list = newArrayList();
        for (final Iterator<URL> it = ClassLoaderUtil.getResources(baseName); it.hasNext();) {
            final URL url = it.next();
            final Traverser resourcesType = getTraverser(url, rootPackage, baseName);
            if (resourcesType != null) {
                list.add(resourcesType);
            }
        }

	collectLocalResourceMetrics()

	for {
		select {
		case <-GlobalContext.Done():
			return
		case <-metricsTimer.C:
			collectLocalResourceMetrics()

			// Reset the timer for next cycle.
			metricsTimer.Reset(resourceMetricsCollectionInterval)
		}
	}
}

// minioResourceCollector is the Collector for resource metrics
type minioResourceCollector struct {

        // Credit request/response
        SMBUtil.writeInt2(1, buffer, headerStart + 14);
        // Flags
        SMBUtil.writeInt4(0, buffer, headerStart + 16);
        // Next command
        SMBUtil.writeInt4(0, buffer, headerStart + 20);
        // Message ID
        SMBUtil.writeInt8(1, buffer, headerStart + 24);
        // Reserved/Async ID

  public @Nullable E higher(E e) {
    return Iterables.<@Nullable E>getFirst(tailSet(e, false), null);
  }

  @Override
  public E first() {
    return iterator().next();
  }

  @Override
  public E last() {
    return descendingIterator().next();
  }

  /**
   * Guaranteed to throw an exception and leave the set unmodified.
   *
   * @since 12.0
   * @throws UnsupportedOperationException always

   * ...
   * synchronized (table) {  // Synchronizing on table, not row!
   *   Iterator<Entry<C, V>> i = row.entrySet().iterator(); // Must be in synchronized block
   *   while (i.hasNext()) {
   *     foo(i.next());
   *   }
   * }
   * }
   *
   * <p>Failure to follow this advice may result in non-deterministic behavior.
   *
   * <p>The returned table will be serializable if the specified table is serializable.

{!../../docs_src/bigger_applications/app/routers/items.py!}
```

#### How relative imports work { #how-relative-imports-work }

/// tip

If you know perfectly how imports work, continue to the next section below.

///

A single dot `.`, like in:

```Python
from .dependencies import get_token_header
```

would mean: