def METHOD_NAME(self, context):
    self.inputs.new('SvStringsSocket', 'thickness').prop_name = 'thickness'
    self.inputs.new('SvStringsSocket', 'Offset').prop_name = 'offset'
    self.inputs.new('SvVerticesSocket', 'vertices')
    self.inputs.new('SvStringsSocket', 'polygons')
    self.outputs.new('SvVerticesSocket', 'vertices')
    self.outputs.new('SvStringsSocket', 'edges')
    self.outputs.new('SvStringsSocket', 'polygons')