[HELP PLEASE] How we know request trigger by manual (use send button) or trigger on runner collection?

hello community,

how we know request trigger by manual (use send button) or trigger on runner collection?
my problem cant skip code if trigger manual.

sample my code

if(runner){
    pm.variables.set('var_local', "foo");
} else {
    pm.variables.set('var_local', "bar");
}

thank you.

so sad, no one answer. let move to another channel.