How to know when code in Deltarune is unused (e.g., dialogue)?

For instance, I remembered some dialogue people mentioned from Tenna that —

He told me digital currency was SECURE!!!

I searched it up in the code.deltarune.wiki and found it in gml_object_obj_b2_moneyhole_step_0

But is there a way to know if that was actually said? That line might've just been in the unimplemented TV Time round.

EDIT: typoes

there isn't a way to easily check if it was used besides trying to look at the code, understand where it is meant to be used, and checking manually. you can try TCRF if you're unsure but i don't know if they have all of the unused dialogue.

that line you asked about is used in board 2. if you go down where the green geyser is, there's a secret money room and tenna says that

Have you played the Boards?

Tenna definitely says that.

Yeah no this is used.