def host_chairs(self):
chairs = []<EOL>host = self.host()<EOL>if host is None:<EOL><INDENT>return<EOL><DEDENT>for member, full_member in host.members_objects:<EOL><INDENT>if '<STR_LIT>' in member.get('<STR_LIT>', '<STR_LIT>').lower():<EOL><INDENT>chairs.append((member, full_member))<EOL><DEDENT><DEDENT>return chairs<EOL>
Returns a list of members that chair the host committee,
        including "co-chair" and "chairperson." This could concievalby
        yield a false positive if the person's title is 'dunce chair'.