if _, found := result[key]; !found {
			result[key] = value.DeepCopy()
		}
	}
	return result
}

// SubtractWithNonNegativeResult - subtracts and returns result of a - b but
// makes sure we don't return negative values to prevent negative resource usage.
func SubtractWithNonNegativeResult(a corev1.ResourceList, b corev1.ResourceList) corev1.ResourceList {
	zero := resource.MustParse("0")