Make sure this role exists and has only what policies we want it to have

def sync_one(self, aws_syncr, amazon, role):
        """Make sure this role exists and has only what policies we want it to have"""
        trust_document = role.trust.document
        attached_policies = role.attached_policies
        permission_document = role.permission.document
        policy_name = "syncr_policy_{0}".format(role.name.replace('/', '__'))

        role_info = amazon.iam.role_info(role.name)
        if not role_info:
            amazon.iam.create_role(role.name, trust_document, policies={policy_name: permission_document}, attached_policies=attached_policies)
        else:
            amazon.iam.modify_role(role_info, role.name, trust_document, policies={policy_name: permission_document}, attached_policies=attached_policies)

        if role.make_instance_profile:
            amazon.iam.make_instance_profile(role.name)