Fill Sinks (Wang & Liu)
ta_preprocessor
QgsProcessingParameterRasterLayer|ELEV|DEM|None|False
ParameterNumber|MINSLOPE|Minimum Slope [Degree]|0.0|None|0.01
OutputRaster|FILLED|Filled DEM
OutputRaster|FDIR|Flow Directions
OutputRaster|WSHED|Watershed Basins