def METHOD_NAME(self, user):
    if not user:
        return False
    elif not self.event.can_manage(user, permission='abstract_reviewer', explicit_permission=True):
        return False
    elif self.event.can_manage(user, permission='review_all_abstracts', explicit_permission=True):
        return True
    return self.can_manage(user, permission='review', explicit_permission=True)