Polygon dissolve (by attribute)|Polygon Dissolve
shapes_polygons
ParameterVector|POLYGONS|Polygons|2|False
ParameterTableField|FIELD_1|1. Attribute|POLYGONS|-1|True
ParameterTableField|FIELD_2|2. Attribute|POLYGONS|-1|True
ParameterTableField|FIELD_3|3. Attribute|POLYGONS|-1|True
ParameterBoolean|BND_KEEP|Keep inner boundaries|True
OutputVector|DISSOLVED|Dissolved Polygons