public @Nullable E peekFirst() {
    return peek();
  }

  /**
   * Removes and returns the greatest element of this queue, or returns {@code null} if the queue is
   * empty.
   */
  @CanIgnoreReturnValue
  public @Nullable E pollLast() {
    return isEmpty() ? null : removeAndGet(getMaxElementIndex());
  }

  /**
   * Removes and returns the greatest element of this queue.
   *

    return findEntryByKey(key, smearedHash(key));
  }

  /**
   * Given a key and its hash, returns the index of the entry in the tables, or ABSENT if not found.
   */
  private int findEntryByKey(@Nullable Object key, int keyHash) {
    return findEntry(key, keyHash, hashTableKToV, nextInBucketKToV, keys);
  }

  /** Given a value, returns the index of the entry in the tables, or ABSENT if not found. */

   *     been added to the filter. Note that {@code put(t)} always returns the <i>opposite</i>
   *     result to what {@code mightContain(t)} would have returned at the time it is called.
   * @since 12.0 (present in 11.0 with {@code void} return type})
   */
  @CanIgnoreReturnValue
  public boolean put(@ParametricNullness T object) {
    return strategy.put(object, funnel, numHashFunctions, bits);
  }

  /**

          // So just refuse to generate.
          return null;
        }
        args.add(argValue);
      }
      return invokeGeneratorMethod(generate, args.toArray());
    }
    return defaultGenerate(rawType);
  }

  private <T> @Nullable T defaultGenerate(Class<T> rawType) {
    if (rawType.isInterface()) {
      // always create a new proxy
      return newProxy(rawType);
    }

    from major web browsers.
 *  New: Honor the `Retry-After` response header. HTTP 503 (Unavailable)
    responses are retried automatically if this header is present and its delay
    is 0 seconds. HTTP 408 (Client Timeout) responses are retried automatically
    if the header is absent or its delay is 0 seconds.
 *  New: Allow request bodies for all HTTP methods except GET and HEAD.

	// Set the normal formData
	for k, v := range formData {
		w.WriteField(k, v)
	}
	// Set the File formData
	writer, err := w.CreateFormFile("file", "upload.txt")
	if err != nil {
		// return nil, err
		return nil, err
	}
	writer.Write([]byte("hello world"))
	// Close before creating the new request.
	w.Close()

	// Set the body equal to the created policy.
	reader := bytes.NewReader(buf.Bytes())

  public @Nullable E peekFirst() {
    return peek();
  }

  /**
   * Removes and returns the greatest element of this queue, or returns {@code null} if the queue is
   * empty.
   */
  @CanIgnoreReturnValue
  public @Nullable E pollLast() {
    return isEmpty() ? null : removeAndGet(getMaxElementIndex());
  }

  /**
   * Removes and returns the greatest element of this queue.
   *

        QueryResponseList qrList = new QueryResponseList(null, 95, 10, 0) {
            @Override
            public int size() {
                return 5; // Only 5 records returned
            }
        };
        qrList.allRecordCount = 100; // Total 100 records
        qrList.calculatePageInfo();

        assertEquals(96, qrList.getCurrentStartRecordNumber()); // start + 1

    this.values = new Object[expectedSize];

    return expectedSize;
  }

  @SuppressWarnings("unchecked")
  @VisibleForTesting
  @Nullable Map<K, V> delegateOrNull() {
    if (table instanceof Map) {
      return (Map<K, V>) table;
    }
    return null;
  }

  Map<K, V> createHashFloodingResistantDelegate(int tableSize) {
    return new LinkedHashMap<>(tableSize, 1.0f);
  }

        this.modelProcessor = modelProcessor;
        return this;
    }

    public DefaultModelBuilder setModelValidator(ModelValidator modelValidator) {
        this.modelValidator = modelValidator;
        return this;
    }

    public DefaultModelBuilder setModelNormalizer(ModelNormalizer modelNormalizer) {
        this.modelNormalizer = modelNormalizer;
        return this;
    }