How to toss item?

[TheChaik]

Hello, I recently started learning Mineflayer and ran into this error:

UnhandledPromiseRejectionWarning: Error: Can't find leather in slots [45 - 81], (item id: 781)

I wanted to discard the leather from the inventory using this code:

if (messagestr.includes('drop')) item = bot.inventory.slots[32].type, await bot.toss(item)

However, the bot doesn't find this item.
What am I doing wrong?

Bot's inventory (obtained through /invsee):

[ichenglin]

The correct parameters of the method is bot.toss(ItemType, MetaData, Count, [Callback]),
which I could see that you only passed in the ItemType.

In addition, if you wish to toss the whole item stack,
you could also use the other method bot.tossStack(Item, [Callback]).

Here's an example of using bot.tossStack.

bot.tossStack(bot.inventory.slots[32]);