pathfinder 1e – can a rogue with the ‘assault leader’ talent provoke an attack on a flanked opponent when using ranged weapons?

So I’m wondering if a rogue that has the assault leader talent can use it to provoke an an attack from an ally like the talent states:

Assault Leader

Benefit: Once per day, when the rogue misses with an attack on a flanked opponent, she can designate a single ally who is also flanking the target that her attack missed. That ally can make a single melee attack against the opponent as an immediate action.

The talent states that when the rogue misses an attack on a flanked opponent, it activates. It does not state the rogue needs to be the one that does the flanking. But it might be implied, I’m not entirely sure. For this question I’ll assume that the ranged attack does not assist the flanking, just that the defender is flanked by two allies of the rogue.