code: def _read_group_field(self, group, levels, field_type, field_size,  
                            decrypted_content):
          
  
          if field_type == 0x0000:
              # Ignored (commentar block)
              pass
          elif field_type == 0x0001:
              group.id_ = struct.unpack('<I', decrypted_content[:4])[0]
          elif field_type == 0x0002:
              try:
                  group.title = struct.unpack('<{0}s'.format(field_size-1),
                      decrypted_content[:field_size-1])[0].decode('utf-8')
              except UnicodeDecodeError:
                  group.title = struct.unpack('<{0}s'.format(field_size-1),
                      decrypted_content[:field_size-1])[0].decode('latin-1')
              decrypted_content = decrypted_content[1:]
          elif field_type == 0x0003:
              group.creation = self._get_date(decrypted_content)
          elif field_type == 0x0004:
              group.last_mod = self._get_date(decrypted_content)
          elif field_type == 0x0005:
              group.last_access = self._get_date(decrypted_content)
          elif field_type == 0x0006:
              group.expire = self._get_date(decrypted_content)
          elif field_type == 0x0007:
              group.image = struct.unpack('<I', decrypted_content[:4])[0]
          elif field_type == 0x0008:
              level = struct.unpack('<H', decrypted_content[:2])[0]
              group.level = level
              levels.append(level)
          elif field_type == 0x0009:
              group.flags = struct.unpack('<I', decrypted_content[:4])[0]
          elif field_type == 0xFFFF:
              pass
          else:
              return False
          return True
docs: This method handles the different fields of a group