def verify_checksum(self):
res = self._FITS.verify_checksum(self._ext+<NUM_LIT:1>)<EOL>if res['<STR_LIT>'] != <NUM_LIT:1>:<EOL><INDENT>raise ValueError("<STR_LIT>")<EOL><DEDENT>if res['<STR_LIT>'] != <NUM_LIT:1>:<EOL><INDENT>raise ValueError("<STR_LIT>")<EOL><DEDENT>
Verify the checksum in the header for this HDU.