//Set the icon item
setIcon(<minecraft:sapling, meta:4>)

//Set the title String
setTitle("I'm a tree!")

//Set the description String
setDescription("Enter a sapling block")

//Add a parent advancement. The syntax is "modid:folder/path/to/the/advancement/then/filename"
addParent("triumph:example/root")

//Set the position
setPos(149,17)

//Hide the connection lines, so I can have a pretty shape
hideLines()

//Adds criteria named "entered" with the trigger type "minecraft:enter_block". This function returns the criteria as an object
criteria = addCriteria("entered", "minecraft:enter_block")

//Sets the required block for the criteria. This is the block that needs to be entered.
criteria.setBlock(<ore:treeSapling>)