A trigger edge carries no data

What it means

A trigger edge carries only the fact that its source finished, never a value — and that holds even where the edge's target handle names an ordinary input port. Pointing a trigger edge at a port that looks like a data port does not make it one: the port is never filled.

Example

node_a produces an output, and a trigger edge wires it to node_z's data port.

{"result": "alpha"}

{}