raster_summary_stats
Raster summary stats
Math
https://www.whiteboxgeo.com/manual/wbw-user-manual/book/tool_help.html#raster_summary_stats
QgsProcessingParameterRasterLayer|input1|Input (Raster)|None|False
QgsProcessingParameterFileDestination|fnOutput|Output (str)|Text files (*.txt *.TXT)|None|False
