Snowflake anonymous blocks?

Just checking in w/the community. Is there a trick to making DataGrip behave nicely with Snowflake anonymous blocks?

The following runs fine, but DataGrip puts a bunch of red squiggles under various things:

declare
    foovar varchar(30);
begin
    foovar := 'bar!';
    let res resultset :=  (select :foovar from dual);
    return foovar;
end;