<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:

def set_integrity_location(self, integrity_extent):
        # type: (int) -> None
        '''
        A method to set the location of the UDF Integrity sequence that this descriptor references.

        Parameters:
         integrity_extent - The new extent that the UDF Integrity sequence should start at.
        Returns:
         Nothing.
        '''
        if not self._initialized:
            raise pycdlibexception.PyCdlibInternalError('UDF Logical Volume Descriptor not initialized')

        self.integrity_sequence_extent = integrity_extent