r.cost
r.cost.points - Creates a raster layer of cumulative cost of moving across a raster layer whose cell values represent cost.
Raster (r.*)
QgsProcessingParameterRasterLayer|input|Unit cost layer|None|False
QgsProcessingParameterVectorLayer|start_points|Start points|0|None|False
QgsProcessingParameterVectorLayer|stop_points|Stop points|0|None|True
QgsProcessingParameterBoolean|-k|Use the 'Knight's move'; slower, but more accurate|False
QgsProcessingParameterBoolean|-n|Keep null values in output raster layer|True
QgsProcessingParameterNumber|max_cost|Maximum cumulative cost|QgsProcessingParameterNumber.Double|0.0|False|None|None
QgsProcessingParameterNumber|null_cost|Cost assigned to null cells. By default, null cells are excluded|QgsProcessingParameterNumber.Double|0.0|False|None|None
QgsProcessingParameterNumber|memory|Maximum memory to be used in MB|QgsProcessingParameterNumber.Integer|300|False|1|None
QgsProcessingParameterRasterDestination|output|Cumulative cost
QgsProcessingParameterRasterDestination|nearest|Cost allocation map