return new byte[0];
    }
    byte[] result = bufs.remove();
    if (result.length == totalLen) {
      return result;
    }
    int remaining = totalLen - result.length;
    result = Arrays.copyOf(result, totalLen);
    while (remaining > 0) {
      byte[] buf = bufs.remove();
      int bytesToCopy = min(remaining, buf.length);
      int resultOffset = totalLen - remaining;

  }

  @Override
  @CanIgnoreReturnValue
  public Hasher putBytes(byte[] bytes) {
    return putBytes(bytes, 0, bytes.length);
  }

  @Override
  @CanIgnoreReturnValue
  public Hasher putBytes(byte[] bytes, int off, int len) {
    Preconditions.checkPositionIndexes(off, off + len, bytes.length);
    for (int i = 0; i < len; i++) {
      putByte(bytes[off + i]);
    }
    return this;
  }

  @Override

    byte[] md5Hash = Hashing.md5().hashLong(42L).asBytes();
    byte[] murmur3Hash = Hashing.murmur3_32().hashLong(42L).asBytes();
    byte[] combined = new byte[md5Hash.length + murmur3Hash.length];
    ByteBuffer buffer = ByteBuffer.wrap(combined);
    buffer.put(md5Hash);
    buffer.put(murmur3Hash);
    HashCode expected = HashCode.fromBytes(combined);

    assertEquals(

        sb.append(dm).append(targetLabel);
        sb.append(dm).append(targetRole);
        sb.append(dm).append(updatedBy);
        sb.append(dm).append(updatedTime);
        if (sb.length() > dm.length()) {
            sb.delete(0, dm.length());
        }
        sb.insert(0, "{").append("}");
        return sb.toString();
    }

    // ===================================================================================

        sb.append(dm).append(errorName);
        sb.append(dm).append(lastAccessTime);
        sb.append(dm).append(threadName);
        sb.append(dm).append(url);
        if (sb.length() > dm.length()) {
            sb.delete(0, dm.length());
        }
        sb.insert(0, "{").append("}");
        return sb.toString();
    }

    // ===================================================================================

        sb.append(dm).append(term);
        sb.append(dm).append(updatedBy);
        sb.append(dm).append(updatedTime);
        sb.append(dm).append(virtualHost);
        if (sb.length() > dm.length()) {
            sb.delete(0, dm.length());
        }
        sb.insert(0, "{").append("}");
        return sb.toString();
    }

    // ===================================================================================

        sb.append(dm).append(updatedBy);
        sb.append(dm).append(updatedTime);
        sb.append(dm).append(value);
        sb.append(dm).append(webConfigId);
        if (sb.length() > dm.length()) {
            sb.delete(0, dm.length());
        }
        sb.insert(0, "{").append("}");
        return sb.toString();
    }

    // ===================================================================================

        } else {
          ""
        }

      // If the value is "quoted", drop the quotes.
      if (value.startsWith("\"") && value.endsWith("\"") && value.length >= 2) {
        value = value.substring(1, value.length - 1)
      }

      result.add(
        Cookie.Builder()
          .name(name)
          .value(value)
          .domain(url.host)
          .build(),
      )

    writeOrCountBytes(sink, false)
  }

  /**
   * Either writes this request to [sink] or measures its content length. We have one method
   * do double-duty to make sure the counting and content are consistent, particularly when it comes
   * to awkward operations like measuring the encoded length of header strings, or the
   * length-in-digits of an encoded integer.
   */
  private fun writeOrCountBytes(
    sink: BufferedSink?,

  }

  public void testLength() throws IOException {
    assertEquals(expected.length(), source.length());
  }

  public void testLengthIfKnown() throws IOException {
    Optional<Long> lengthIfKnown = source.lengthIfKnown();
    if (lengthIfKnown.isPresent()) {
      assertEquals(expected.length(), (long) lengthIfKnown.get());
    }
  }