export declare enum SlopeClass {
    'Class 1 (0 - 0.5%)' = 0,
    'Class 2 (>0.5 - 2%)' = 1,
    'Class 3 (>2 - 5%)' = 2,
    'Class 4 (>5 - 10%)' = 3,
    'Class 5 (>10 - 15%)' = 4,
    'Class 6 (>15 - 30%)' = 5,
    'Class 7 (>30 - 45%)' = 6,
}