app/Processors/Inventory/InventoryStockProcessor.php
public function update(InventoryStockRequest $request, $itemId, $stockId)
    {
        $item = $this->inventory->findOrFail($itemId);

        $stock = $item->stocks()->findOrFail($stockId);

        return $this->dispatch(new Update($request, $item, $stock));
    }
public function update(InventoryStockRequest $request, $itemId, $stockId)
    {
        $item = $this->inventory->findOrFail($itemId);

        $stock = $item->stocks()->findOrFail($stockId);

        return $this->dispatch(new Update($request, $item, $stock));
    }
Updates the specified inventory stock.

@param InventoryStockRequest $request
@param int|string            $itemId
@param int|string            $stockId

@return bool