code: def prt_mrks(self, name_marks_list, prt=sys.stdout):
          
          if not name_marks_list:
              return
          # prt.write("\nKey for GO sections:\n")
          # self.prt_section_key(prt)
          prt.write("\n{HDR}\n".format(HDR=self.str_hdr()))
          for name, mark in name_marks_list:
              if mark is not None:
                  prt.write("{MRKS} {NAME}\n".format(MRKS="".join(mark), NAME=name))
          prt.write("\n")
docs: Print summary of all GOEAs.
             Example:
               Key for GO sections:
               A immune
               B viral/bacteria
               C neuro
               D cell death
               E lipid
               F adhesion
               G cell cycle
               H chromosome
               I development
               J extracellular matrix
               K ion
               L localization
               M membrane
               N metabolic
               O phosphorylation
               P signaling
               Q stimulus
               R prolif_differ
               S Misc.
  
               ABCDEFGHIJKLMNOPQRS
               XX.X..XXX..X.XX.XXX transient_increase
               XX.XXX.....X.X.XXXX consistent_increase
               XXXXXX..XXXXXXXXXXX late_increase
               ..X.....X.XX.X....X consistent_decrease
               ..X.XX..X.XX.XXX.XX late_decrease