Grim-determination.py Help!

summonTypes = ['griffin-rider']


def summonTroops():
    type = summonTypes[len(hero.built) % len(summonTypes)]
    if hero.gold > hero.costOf(type):
        hero.summon(type)



def lowestHealthPaladin():
    lowestHealth = 99999
    lowestFriend = None
    friends = hero.findFriends()
    for friend in friends:
        if friend.type != "paladin":
            continue
        if friend.health < lowestHealth and friend.health < friend.maxHealth:
            lowestHealth = friend.health
            lowestFriend = friend
            
    return lowestFriend


def commandPaladin(paladin):
    if (paladin.canCast("heal")):
        target = lowestHealthPaladin()
        if target:
            hero.command(paladin, "cast", "heal", target)
    elif (paladin.health < 200):
        hero.command(paladin, "shield")
    else:
        target = paladin.findNearestEnemy()
        if (target):
            hero.command(paladin, "attack", target)


def commandPeasant(peasant):
    item = peasant.findNearestItem()
    if item:
        hero.command(peasant, 'move', item.pos)


def commandGriffin(griffin):
    target = hero.findNearest(hero.findByType('warlock'))
    if not target:
        target = griffin.findNearestEnemy()
    if (target):
        hero.command(griffin, "attack", target)


def commandFriends():
    friends = hero.findFriends()
    for friend in friends:
        if friend.type == "peasant":
            commandPeasant(friend)
        elif friend.type == "griffin-rider":
            commandGriffin(friend)
        elif friend.type == "paladin":
            commandPaladin(friend)


while True:
    commandFriends()
    summonTroops()

I can’t figure out what to do with this code

Please give more info about what is happening

is commandPeasant, commandGriffin and commandPaladin

commandPeasant is collect items peasant.findNearestItem()

commandGriffin is attack warlocks is they are near findByType('warlock')

commandPaladin is heal (lowestHealthPaladin()) and "attack", target

maybe you need also write code for your hero
something like

function heroAttack(){
killthemall

}