code: def is_haraka(archar):
      """Checks for Arabic Harakat Marks (FATHA, DAMMA, KASRA, SUKUN, TANWIN).
      @param archar: arabic unicode char
      @type archar: unicode
      @return:
      @rtype:Boolean
      """
      return archar in HARAKAT
  
imports: import re
  from cltk.phonology.arb.utils.pyarabic import stack
label_desc: Use image node_id 6 for calling a global function with example usage: is_haraka(archar) and returns: unknown