code: def _jamo_to_hangul_char(lead, vowel, tail=0):
      
      lead = ord(lead) - _JAMO_LEAD_OFFSET
      vowel = ord(vowel) - _JAMO_VOWEL_OFFSET
      tail = ord(tail) - _JAMO_TAIL_OFFSET if tail else 0
      return chr(tail + (vowel - 1) * 28 + (lead - 1) * 588 + _JAMO_OFFSET)
docs: Return the Hangul character for the given jamo characters.