//Set icon item
setIcon("primal:flint_knapp")

//Set title String
setTitle("Flaked Flint")

//Set description String
setDescription("Punsh your flint on stone!")

//Set the parent advancement. The syntax is "modid:folder/path/to/the/advancement/then/filename"
setParent("triumph:engineer/engineer_flint")

criteria = addCriteria("hasFFlint", "minecraft:inventory_changed")
criteria.addItem("primal:flint_knapp")

//Sets the requirements to be any. This means that if ANY of the criteria triggers is acquired, the advancement is acquired.
setRequirements("any")

setRewardExperience(100)