*QgsProcessingParameterBoolean|-a|Do not align the current region to the elevation layer|False
QgsProcessingParameterNumber|zscale|Multiplicative factor to convert elevation units to meters|QgsProcessingParameterNumber.Double|1.0|False|None|None
QgsProcessingParameterNumber|min_slope|Minimum slope val. (in percent) for which aspect is computed|QgsProcessingParameterNumber.Double|0.0|False|None|None