KEY CONFIG
You can use this to create a key but in my opinion it isn't useful as you can use a Local Key and I haven't figured out a use for these keys yet.
==========================================
voteKey {
	name="&3Vote Key"
	isVirtual=false
	item {
		id="minecraft:nether_star"
		name="&3Vote Key"
	}
}
==========================================

CRATES CONFIG
==========================================
Example Crate {
    cooldownSeconds=0
    effects { // Animations
        idle {
            particles=[
                {
                    animationPreset=orbit
                    color=[
                        0,
                        255,
                        0
                    ]
                    type="minecraft:redstone_dust"
                },
                {
                    animationPreset=orbit
                    color=[
                        255,
                        255,
                        0
                    ]
                    type="minecraft:redstone_dust"
                }
            ]
        }
    }
    free=false
    hologram {
        lines=[
            "&bExample Crate" //Name of the crate.
        ]
    }
//This is where you create your key this works as a Local Key.
	localKey {
        id="minecraft:nether_star"
        name="&3Example Key"
    }
    name="&bExample Crate"
    slots=[
        {
            chance=7.0 //Chance rate of this working
            displayItem {
                count=5
                id="minecraft:dirt" // use the block id.
                name="You can name the reward here"
            }
            rewards=[
                {
                    type=item //Refer to the wiki on how to make this a command.
                }
            ]
        }
    ]
    useLocalKey=true //Makes it so the create uses said localKey.
    viewType=instant //here you can use Instant, Spinner and Roulette (Refer to the wiki for more info)
}

=====================================

HuskyCrates Config
=====================================

messages {
    balanceCommand {
        balanceRow="&7 - {key}&r&7: &a{amount}"
        noBalanceEntries="&7This user has no balances."
        noValidUser="&cNo valid user found to list the balance of."
        otherBalanceHeader="&6{player}'s Key Balances"
        selfBalanceHeader="&aYour Key Balances"
        userNotExist="&c{username} has never logged into this server."
        uuidBalanceHeader="&2Balance for {uuid}"
    }
    blockCommand {
        itemOnlyFailure="&cThe block you supplied could not be converted to an item. Please try again with a different block."
        noPlayersFound="&cNo valid players could be found to give a crate placement block to."
    }
    crate {
        rejectionCooldown="&cYou currently have {cooldown.remaining} second{cooldown.remaining.plural} out of {cooldown.total} remaining left in your cooldown."
        rejectionNeedKey="&cYou need {key.0.amountRequired} {key.0.name}&r&c to use this crate."
        virtualKeyConsumed="&eYou just used {amount} {key}{amount.plural}&r&e from your key balance. You have {amountRemaining} {key}&r&e{amountRemaining.plural} left."
    }
    keyCommand {
        crateKeyVirtual="&cThe resolved key is virtual only. Please supply a key that can be a physical item, or use the \"v\" flag."
        crateNoLocalKey="&cThe supplied crate did not have a local key."
        keyDeliveryFail="&c{player} failed to receive their {amount} key{amount.plural}!"
        keyDeliverySuccess="&a{player} received {amount} key{amount.plural}."
        massKeyDeliverySuccess="&a{playerAmount} player{playerAmount.plural} received {amount} key{amount.plural}."
        noPlayersFound="&cNo valid players could be found to deliver keys to."
        receivedKey="&aYou received {amount} {key}{amount.plural}&r!"
        selfKeyDeliveryFail="&cFailed to give you keys!"
        selfKeyDeliverySuccess="&aYou were given {amount} key{amount.plural}."
    }
}
secureKeys=true