airflow/contrib/hooks/aws_athena_hook.py
def get_conn(self):
        """
        check if aws conn exists already or create one and return it

        :return: boto3 session
        """
        if not self.conn:
            self.conn = self.get_client_type('athena')
        return self.conn
def get_conn(self):
        """
        check if aws conn exists already or create one and return it

        :return: boto3 session
        """
        if not self.conn:
            self.conn = self.get_client_type('athena')
        return self.conn
check if aws conn exists already or create one and return it

        :return: boto3 session