code: def _parse_cod_segment(cls, fptr):
          
          offset = fptr.tell() - 2
  
          read_buffer = fptr.read(2)
          length, = struct.unpack('>H', read_buffer)
  
          read_buffer = fptr.read(length - 2)
  
          lst = struct.unpack_from('>BBHBBBBBB', read_buffer, offset=0)
          scod, prog, nlayers, mct, nr, xcb, ycb, cstyle, xform = lst
  
          if len(read_buffer) > 10:
              precinct_size = _parse_precinct_size(read_buffer[10:])
          else:
              precinct_size = None
  
          sop = (scod & 2) > 0
          eph = (scod & 4) > 0
  
          if sop or eph:
              cls._parse_tpart_flag = True
          else:
              cls._parse_tpart_flag = False
  
          pargs = (scod, prog, nlayers, mct, nr, xcb, ycb, cstyle, xform,
                   precinct_size)
  
          return CODsegment(*pargs, length=length, offset=offset)
docs: Parse the COD segment.
  
          Parameters
          ----------
          fptr : file
              Open file object.
  
          Returns
          -------
          CODSegment
              The current COD segment.