Simple Filter within shapes
grid_filter
QgsProcessingParameterRasterLayer|INPUT|Grid|None|False
QgsProcessingParameterRasterDestination|RESULT|Filtered Grid
QgsProcessingParameterFeatureSource|SHAPES|Boundaries|-1|None|False
QgsProcessingParameterEnum|MODE|Search Mode|[0] Square;[1] Circle|False|1
QgsProcessingParameterEnum|METHOD|Filter|[0] Smooth;[1] Sharpen;[2] Edge|False|0
QgsProcessingParameterNumber|RADIUS|Radius|QgsProcessingParameterNumber.Integer|1|False|1|None
