code: def is_alef(archar):
      """Checks for Arabic Alef forms.
      ALEFAT = (ALEF, ALEF_MADDA, ALEF_HAMZA_ABOVE, ALEF_HAMZA_BELOW, ALEF_WASLA, ALEF_MAKSURA )
      @param archar: arabic unicode char
      @type archar: unicode
      @return:
      @rtype:Boolean
      """
      return archar in ALEFAT
  
imports: import re
  from cltk.phonology.arb.utils.pyarabic import stack
label_desc: Use image node_id 10 for calling a global function with example usage: is_alef(archar) and returns: unknown