r.fill.dir
Filters and generates a depressionless elevation layer and a flow direction layer from a given elevation raster layer.
Raster (r.*)
QgsProcessingParameterRasterLayer|input|Elevation|None|False
QgsProcessingParameterEnum|format|Output aspect direction format|grass;agnps;answers|False|0|True
*QgsProcessingParameterBoolean|-f|Find unresolved areas only|False
QgsProcessingParameterRasterDestination|output|Depressionless DEM
QgsProcessingParameterRasterDestination|direction|Flow direction
QgsProcessingParameterRasterDestination|areas|Problem areas