}

  /**
   * Returns the name of the query parameter at `index`. For example this returns `"a"`
   * for `queryParameterName(0)` on `http://host/?a=apple&b=banana`. This throws if
   * `index` is not less than the [query size][querySize].
   *
   * | URL                               | `queryParameterName(0)` | `queryParameterName(1)` |
   * | :-------------------------------- | :---------------------- | :---------------------- |

This idea of **asynchronous** code described above is also sometimes called **"concurrency"**. It is different from **"parallelism"**.

**Concurrency** and **parallelism** both relate to "different things happening more or less at the same time".

But the details between *concurrency* and *parallelism* are quite different.

To see the difference, imagine the following story about burgers:

### Concurrent Burgers { #concurrent-burgers }

				}, w)
			}

			// fallback only when set.
			for {
				fd := fallback(werr)
				if fd == nil {
					break
				}
				// This fallback is only set when
				// askDisks is less than total
				// number of disks per set.
				werr = fd.WalkDir(ctx, WalkDirOptions{
					Limit:          opts.perDiskLimit,
					Bucket:         opts.bucket,
					BaseDir:        opts.path,

As she said this, she came upon a neat little house, on the door
of which was a bright brass plate with the name `W. RABBIT'
engraved upon it.  She went in without knocking, and hurried
upstairs, in great fear lest she should meet the real Mary Ann,
and be turned out of the house before she had found the fan and
gloves.

  `How queer it seems,' Alice said to herself, `to be going

      for (int i = 0; i < params.size(); i++) {
        TypeToken<?> paramType = type.resolveType(typeVars[i]);
        // We require all @Generates methods to either be parameter-less or accept non-null
        // values for their generic parameter types.
        Object argValue = generate(paramType);
        if (argValue == null) {
          // When a parameter of a @Generates method cannot be created,

     * Luckily, our nullness checker is smart enough to realize that `convert` has @PolyNull-like
     * behavior, so it knows that `convert(a)` returns a non-nullable value, and we don't need to
     * perform even a cast, much less a runtime check.
     *
     * All that said, don't forget that everyone should call converter.convert() instead of
     * converter.apply(), anyway. If clients use only converter.convert(), then their nullness

   * Returns a string representation of this fluent iterable, with the format {@code [e1, e2, ...,
   * en]}.
   *
   * <p><b>{@code Stream} equivalent:</b> {@code stream.collect(Collectors.joining(", ", "[", "]"))}
   * or (less efficiently) {@code stream.collect(Collectors.toList()).toString()}.
   */
  @Override
  public String toString() {
    return Iterables.toString(getDelegate());
  }

  /**

   * Returns a string representation of this fluent iterable, with the format {@code [e1, e2, ...,
   * en]}.
   *
   * <p><b>{@code Stream} equivalent:</b> {@code stream.collect(Collectors.joining(", ", "[", "]"))}
   * or (less efficiently) {@code stream.collect(Collectors.toList()).toString()}.
   */
  @Override
  public String toString() {
    return Iterables.toString(getDelegate());
  }

  /**

		}
		if !result.IsTruncated {
			t.Errorf("%s: Expected IsTruncated to be `true`, but instead found it to be `%v`", instanceType, result.IsTruncated)
		}
	}
	// check paging with prefix at end returns less objects.
	{
		_, err = obj.PutObject(context.Background(), "bucket", "newPrefix", mustGetPutObjReader(t, bytes.NewBufferString(uploadContent), int64(len(uploadContent)), "", ""), opts)
		if err != nil {

        stream = getStream(streamId)

        if (stream == null) {
          // If we're shutdown, don't bother with this stream.
          if (isShutdown) return

          // If the stream ID is less than the last created ID, assume it's already closed.
          if (streamId <= lastGoodStreamId) return

          // If the stream ID is in the client's namespace, assume it's already closed.