def username(self, default=None):
if self.lis_person_name_given:<EOL><INDENT>return self.lis_person_name_given<EOL><DEDENT>elif self.lis_person_name_family:<EOL><INDENT>return self.lis_person_name_family<EOL><DEDENT>elif self.lis_person_name_full:<EOL><INDENT>return self.lis_person_name_full<EOL><DEDENT>else:<EOL><INDENT>return default<EOL><DEDENT>
Return the full, given, or family name if set.