def _update_info(self):
super(ImageHDU, self)._update_info()<EOL>if self._info['<STR_LIT>'] != IMAGE_HDU:<EOL><INDENT>mess = "<STR_LIT>" % self.ext<EOL>raise ValueError(mess)<EOL><DEDENT>if '<STR_LIT>' in self._info:<EOL><INDENT>self._info['<STR_LIT>'] = list(reversed(self._info['<STR_LIT>']))<EOL><DEDENT>
Call parent method and make sure this is in fact a
image HDU.  Set dims in C order