These are the functions which can be called on a minecraft:changed_dimension criteria 
trigger.



setDimensionDestination:
    Arguments:
        String
    Usage:
        dimension type
    Notes:
        Sets the destination dimension type. Vanilla options are "overworld", "the_nether", "the_end"

setDimensionOrigin:
    Arguments:
        String
    Usage:
        dimension type
    Notes:
        Sets the origin dimension type. Vanilla options are "overworld", "the_nether", "the_end"

setCount:
    Arguments:
        int
    Usage:
        count
    Notes:
        Sets the number of times this criteria must be completed before it counts towards advancement progress.