Curry a function in Lua.lua

function M.create_dropping_callback(mob)
    local mob = mob
    return function(targetX, targetY)
        local mob_tile_x, mob_tile_y = collision_utils.posToTiles(mob.pos)
        local animation_suffix = distingushSide(mob_tile_x, mob_tile_y, targetX, targetY)
        local is_left = animation_suffix == "left"
        local animation_name = "grab_" .. animation_suffix
        local is_failed = false

        return function ()
            mob.processing = true
            spine.play_anim(mob.spine_model_url, randomizeMobsAniamtion(animation_name, mob.animationSuffix, mob.isCargomate), go.PLAYBACK_ONCE_FORWARD, {playback_rate = M.get_speed_multiplier(mob) or 1},
            function(self, message_id, message, sender)
                    local colObj = collision_utils.checkCollision(mob, collision_utils.tilesToPos(targetX, targetY), 32, {M.mobs}, SINGLE)
                    if message_id == hash("spine_animation_done") then
                        -- if the animation ends, proceed to the next step
                        mob.processing = false

                    elseif colObj then
                        -- at the keyframe, feed the element to the robot if it is not busy
                        local element
                        if is_left then
                            element = mob.elementsStack.left
                            mob.elementsStack.left = nil
                        else
                            element = mob.elementsStack.right
                            mob.elementsStack.right = nil
                        end
                        M.eatElement(colObj.obj, element, nil, true)
                        goToNextStep(getCurrentCommand(mob), mob)

                    else 
                        is_failed = true
                        mob.processing = false
                        if not tryToGoOnError(getCurrentCommand(mob), mob) then
                            mob.afkTimer = 1
                            showError(mob)
                            mob.execResult = false
                        end
                    end
            end)
        end
    end
end