* immutability contract of {@code HashCode}. The array cannot be empty.
   *
   * @since 15.0 (since 12.0 in HashCodes)
   */
  public static HashCode fromBytes(byte[] bytes) {
    checkArgument(bytes.length >= 1, "A HashCode must contain at least 1 byte.");
    return fromBytesNoCopy(bytes.clone());
  }

  /**

   * immutability contract of {@code HashCode}. The array cannot be empty.
   *
   * @since 15.0 (since 12.0 in HashCodes)
   */
  public static HashCode fromBytes(byte[] bytes) {
    checkArgument(bytes.length >= 1, "A HashCode must contain at least 1 byte.");
    return fromBytesNoCopy(bytes.clone());
  }

  /**

    return fromBytes(bytes[0], bytes[1], bytes[2], bytes[3]);
  }

  /**
   * Returns the {@code int} value whose byte representation is the given 4 bytes, in big-endian
   * order; equivalent to {@code Ints.fromByteArray(new byte[] {b1, b2, b3, b4})}.
   *
   * @since 7.0
   */
  public static int fromBytes(byte b1, byte b2, byte b3, byte b4) {

   */
  public static long fromByteArray(byte[] bytes) {
    checkArgument(bytes.length >= BYTES, "array too small: %s < %s", bytes.length, BYTES);
    return fromBytes(
        bytes[0], bytes[1], bytes[2], bytes[3], bytes[4], bytes[5], bytes[6], bytes[7]);
  }

  /**
   * Returns the {@code long} value whose byte representation is the given 8 bytes, in big-endian