QgsProcessingParameterNumber|smoothness|Factor for output smoothness|QgsProcessingParameterNumber.Double|0.25|True|None|None
QgsProcessingParameterNumber|thin|Maximum dangle length of skeletons (-1 will extract the center line)|QgsProcessingParameterNumber.Double|-1.0|True|-1.0|None
*QgsProcessingParameterBoolean|-a|Create Voronoi diagram for input areas|False
*QgsProcessingParameterBoolean|-s|Extract skeletons for input areas|False
*QgsProcessingParameterBoolean|-l|Output tessellation as a graph (lines), not areas|False