surface_area_ratio
Surface area ratio
Geomorphometry
https://www.whiteboxgeo.com/manual/wbw-user-manual/book/tool_help.html#surface_area_ratio
QgsProcessingParameterRasterLayer|dem1|DEM (Raster)|None|False
QgsProcessingParameterRasterDestination|fnOutput|Output (Raster)|None|False
