Describe the feature you'd like
Essentially, I'd love for https://github.com/mekanism-mod/Mekanism/blob/1.12/src/main/java/mekanism/common/integration/crafttweaker/gas/GasBracketHandler.java#L33 this method to be exposed to crafttweaker. This will allow you to get a Gas more dynamically in scripts.

Released on https://minecraft.curseforge.com/projects/mekanism/files/2699534