def METHOD_NAME(self, header, size, checksum_type, checksum, path=None, org_id=None,
             channels=[]):
    # call to base class method
    headerSource.rpmBinaryPackage.METHOD_NAME(self, header, size, checksum_type, checksum, path,
                                           org_id, channels)
    srpm = self.get('source_rpm', '')
    if srpm == '':
        self['source_rpm'] = None
    group = self.get('package_group', '')
    if group == '':
        self['package_group'] = 'NoGroup'
    return self