how do I make the repair free
this what I have currently
// refuel settings _refuel_enable = true; // enable or disable the refuel option _refuel_costs = []; // free for all vehicles (equal to [["AllVehicles",[]]]) _refuel_updateInterval = 1; // update interval (in seconds) _refuel_amount = 0.05; // amount of fuel to add with every update (in percent) // repair settings _repair_enable = true; // enable or disable the repair option _repair_costs = []; ["Air",[]], // 5 Gold for helicopters and planes ["AllVehicles",[]] // 2 Gold for all other vehicles ]; _repair_repairTime = 2; // time needed to repair each damaged part (in seconds)