Looking to make a soundpack and need help on a few things

Ok so I want to add sounds to spells from magiclysm but first I want to see if I can do it issue is I seem to have an issue with my coding or something can someone tell me if this looks right?

“type”: “sound_effect”,
“id” : “fire_gun”,
“variant” : “point_flare”,
“volume” : 70,
“files” : [

Yes the sound effect is taken from Otopack
However I’m more just trying to learn how to do this right now.