TakeActiveItemFromOneOfSlot is not available

[Littlefat1213]

function InvSlot:Click(stack_mod)
    local slot_number = self.num
    local character = ThePlayer
    local inventory = character and character.replica.inventory or nil
    local active_item = inventory and inventory:GetActiveItem() or nil
    local container = self.container
    local container_item = container and container:GetItemInSlot(slot_number) or nil

    if active_item ~= nil or container_item ~= nil then
        if container_item == nil then
            --Put active item into empty slot
            if container:CanTakeItemInSlot(active_item, slot_number) then
                if active_item.replica.stackable ~= nil and
                    active_item.replica.stackable:IsStack() and
                    (stack_mod or not container:AcceptsStacks()) then
                    --Put one only
                    container:PutOneOfActiveItemInSlot(slot_number)
                else
                    --Put entire stack
                    container:PutAllOfActiveItemInSlot(slot_number)
                end
                TheFocalPoint.SoundEmitter:PlaySound("dontstarve/HUD/click_object")
            else
                TheFocalPoint.SoundEmitter:PlaySound("dontstarve/HUD/click_negative")
            end
        elseif active_item == nil then
            --Take active item from slot
            if stack_mod and
                container_item.replica.stackable ~= nil and
                container_item.replica.stackable:IsStack() then
                --Take one only
                container:TakeActiveItemFromHalfOfSlot(slot_number)
            else
                --Take entire stack
                container:TakeActiveItemFromAllOfSlot(slot_number)
            end
            TheFocalPoint.SoundEmitter:PlaySound("dontstarve/HUD/click_object")
        elseif container:CanTakeItemInSlot(active_item, slot_number) then
            if container_item.prefab == active_item.prefab and container_item.AnimState:GetSkinBuild() == active_item.AnimState:GetSkinBuild() and container_item.replica.stackable ~= nil and container:AcceptsStacks() then --active_item.prefab and container_item.skinname (this does not work on clients, so we're going to use the AnimState hack instead)
                --Add active item to slot stack
                if stack_mod and
                    active_item.replica.stackable ~= nil and
                    active_item.replica.stackable:IsStack() and
                    not container_item.replica.stackable:IsFull() then
                    --Add only one
                    container:AddOneOfActiveItemToSlot(slot_number)
                else
                    --Add entire stack
                    container:AddAllOfActiveItemToSlot(slot_number)
                end
                TheFocalPoint.SoundEmitter:PlaySound("dontstarve/HUD/click_object")

            elseif active_item.replica.stackable ~= nil and active_item.replica.stackable:IsStack() and not container:AcceptsStacks() then
                container:SwapOneOfActiveItemWithSlot(slot_number)

            elseif container:AcceptsStacks() or not (active_item.replica.stackable ~= nil and active_item.replica.stackable:IsStack()) then
                --Swap active item with slot item
                container:SwapActiveItemWithSlot(slot_number)
                TheFocalPoint.SoundEmitter:PlaySound("dontstarve/HUD/click_object")
            else
                TheFocalPoint.SoundEmitter:PlaySound("dontstarve/HUD/click_negative")
            end
        else
            TheFocalPoint.SoundEmitter:PlaySound("dontstarve/HUD/click_negative")
        end
    end
end

i just wanna adjust the activeitem count via mouse wheeling. yeah i think zoom in and zoom out is less usage most of time specially get focus on the invslot widget .I think it's easy to understand ,take one when sliding up and decrease when sliding down .But i realized the TakeActiveItemFromOneOfSlot method is not available in inventory or container although the code comments preserved.(as above code in InvSlot, the comments write "take one only" but use "TakeActiveItemFromHalfOfSlot", and the key is that we have takehalf function but no takeone function)

is it hopeful to add this method by dear klei ?so that i can make it a client mod