return 3;
    }

    @Override
    public char charAt(int index) {
      return "foo".charAt(index);
    }

    @Override
    public CharSequence subSequence(int start, int end) {
      return "foo".subSequence(start, end);
    }

    @Override
    public String toString() {
      throw new AssertionFailedError("shouldn't be invoked");
    }
  }

  }

  /**
   * Returns a splitter that considers any subsequence matching {@code pattern} to be a separator.
   * For example, {@code Splitter.on(Pattern.compile("\r?\n")).split(entireFile)} splits a string
   * into lines whether it uses DOS-style or UNIX-style line terminators.
   *
   * @param separatorPattern the pattern that determines whether a subsequence is a separator. This
   *     pattern may not match the empty string.

    }

    /**
     * Append content to the message buffer.
     *
     * @param value the content to append
     * @param start the starting index of the subsequence to be appended
     * @param end the end index of the subsequence to be appended
     * @return the current builder
     */
    @Nonnull
    default MessageBuilder a(CharSequence value, int start, int end) {

        final String message = String.format(
                "The token '%s' at position '%d' refers to a java.util.Map, but the value "
                        + "seems is an instance of '%s'",
                expression.subSequence(from, to), from, value.getClass());

        throw new IntrospectionException(message);
    }

    private static Object getIndexedValue(

        break;
      }
    }
    for (last = len - 1; last > first; last--) {
      if (!matches(sequence.charAt(last))) {
        break;
      }
    }

    return sequence.subSequence(first, last + 1).toString();
  }

  /**
   * Returns a substring of the input character sequence that omits all matching BMP characters from
   * the beginning of the string. For example:
   *

      char padChar = paddingChar.charValue();
      int l;
      for (l = chars.length() - 1; l >= 0; l--) {
        if (chars.charAt(l) != padChar) {
          break;
        }
      }
      return chars.subSequence(0, l + 1);
    }

    @Override
    public boolean canDecode(CharSequence chars) {
      checkNotNull(chars);
      chars = trimTrailingPadding(chars);