Enums.SlopeType enumeration

The SlopeType can be one of:

Constant	Description
`Enums.SlopeTypeNone`	`(-1)` No slope type.
`Enums.SlopeTypeDegree`	`(0)` The slope in degrees.
`Enums.SlopeTypePercentRise`	`(1)` The slope in percent slope.
`Enums.SlopeTypeScaled`	`(2)` The slope is scaled.