Stored Procedure for Vacuum in PostgreSQL

I want to create a stored procedure to trigger vacuum, I know there are many ways to automate vacuum, but I would like to use the stored procedure (Postgresql 9.6). The problem Im facing is, I can't run the vacuum inside the BEGIN/END so there is a workaround, we can use set autocommit=on. But when I add this autocommit inside the stored procedure, its throwing error. ### Sample SP:

create procedure test(table_list varchar(1000))
LANGUAGE plpgsql 
AS 
$$ 
DECLARE 
*** some values ***
BEGIN 
EXECUTE 'set autocommit=on';
*** Rest of the command to get the table names one by one and vacuum in a loop***
END;
$$

Is this possible? Or any alternate way?