var warehouse_total_value = 0;
 
// Calculate total price of all items effectively
input.inventory.forEach(function(item) {
  warehouse_total_value += (item.qty * item.price_per_unit);
});
 
// Return the final evaluated object directly
return {
  global_inventory_valuation: warehouse_total_value
};

// Iterate the events recursively 
for (var i = 0; i < input.length; i++) {
  var rawUnix = input[i].server_startup_time;
 
  // JS evaluates unix timestamps in milliseconds 
  input[i].server_startup_time = new Date(rawUnix * 1000).toISOString();
}
 
return input;