def _is_jamo(i):
    """
    Function for determining if a Unicode scalar value i is within the range of Jamo.

    :param i: Unicode scalar value to lookup
    :return: Boolean: True if the lookup value is within the range of Hangul syllables, otherwise False.
    """
    if i in range(0x1100, 0x11ff + 1):  # Range of Jamo as defined in Blocks.txt, "1100..11FF; Hangul Jamo"
        return True
    return False