def METHOD_NAME(self, group_name, group_description):
    """
    Creates a security group in the default virtual private cloud (VPC) of the
    current account.
    :param group_name: The name of the security group to create.
    :param group_description: The description of the security group to create.
    :return: A Boto3 SecurityGroup object that represents the newly created security group.
    """
    try:
        self.security_group = self.ec2_resource.create_security_group(
            GroupName=group_name, Description=group_description)
    except ClientError as err:
        logger.error(
            "Couldn't create security group %s. Here's why: %s: %s", group_name,
            err.response['Error']['Code'], err.response['Error']['Message'])
        raise
    else:
        return self.security_group