user: Explain _ in complete detail according to the official Blender documentation.

assistant: |  |
| --- |
| - [__call__() (freestyle.functions.freestyle.functions.ChainingTimeStampF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.ChainingTimeStampF1D.__call__)   - [(freestyle.functions.freestyle.functions.Curvature2DAngleF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.Curvature2DAngleF0D.__call__)   - [(freestyle.functions.freestyle.functions.Curvature2DAngleF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.Curvature2DAngleF1D.__call__)   - [(freestyle.functions.freestyle.functions.CurveNatureF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.CurveNatureF0D.__call__)   - [(freestyle.functions.freestyle.functions.CurveNatureF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.CurveNatureF1D.__call__)   - [(freestyle.functions.freestyle.functions.DensityF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.DensityF0D.__call__)   - [(freestyle.functions.freestyle.functions.DensityF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.DensityF1D.__call__)   - [(freestyle.functions.freestyle.functions.GetCompleteViewMapDensityF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetCompleteViewMapDensityF1D.__call__)   - [(freestyle.functions.freestyle.functions.GetCurvilinearAbscissaF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetCurvilinearAbscissaF0D.__call__)   - [(freestyle.functions.freestyle.functions.GetDirectionalViewMapDensityF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetDirectionalViewMapDensityF1D.__call__)   - [(freestyle.functions.freestyle.functions.GetOccludeeF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetOccludeeF0D.__call__)   - [(freestyle.functions.freestyle.functions.GetOccludeeF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetOccludeeF1D.__call__)   - [(freestyle.functions.freestyle.functions.GetOccludersF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetOccludersF0D.__call__)   - [(freestyle.functions.freestyle.functions.GetOccludersF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetOccludersF1D.__call__)   - [(freestyle.functions.freestyle.functions.GetParameterF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetParameterF0D.__call__)   - [(freestyle.functions.freestyle.functions.GetProjectedXF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetProjectedXF0D.__call__)   - [(freestyle.functions.freestyle.functions.GetProjectedXF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetProjectedXF1D.__call__)   - [(freestyle.functions.freestyle.functions.GetProjectedYF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetProjectedYF0D.__call__)   - [(freestyle.functions.freestyle.functions.GetProjectedYF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetProjectedYF1D.__call__)   - [(freestyle.functions.freestyle.functions.GetProjectedZF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetProjectedZF0D.__call__)   - [(freestyle.functions.freestyle.functions.GetProjectedZF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetProjectedZF1D.__call__)   - [(freestyle.functions.freestyle.functions.GetShapeF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetShapeF0D.__call__)   - [(freestyle.functions.freestyle.functions.GetShapeF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetShapeF1D.__call__)   - [(freestyle.functions.freestyle.functions.GetSteerableViewMapDensityF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetSteerableViewMapDensityF1D.__call__)   - [(freestyle.functions.freestyle.functions.GetViewMapGradientNormF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetViewMapGradientNormF0D.__call__)   - [(freestyle.functions.freestyle.functions.GetViewMapGradientNormF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetViewMapGradientNormF1D.__call__)   - [(freestyle.functions.freestyle.functions.GetXF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetXF0D.__call__)   - [(freestyle.functions.freestyle.functions.GetXF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetXF1D.__call__)   - [(freestyle.functions.freestyle.functions.GetYF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetYF0D.__call__)   - [(freestyle.functions.freestyle.functions.GetYF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetYF1D.__call__)   - [(freestyle.functions.freestyle.functions.GetZF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetZF0D.__call__)   - [(freestyle.functions.freestyle.functions.GetZF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetZF1D.__call__)   - [(freestyle.functions.freestyle.functions.IncrementChainingTimeStampF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.IncrementChainingTimeStampF1D.__call__)   - [(freestyle.functions.freestyle.functions.LocalAverageDepthF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.LocalAverageDepthF0D.__call__)   - [(freestyle.functions.freestyle.functions.LocalAverageDepthF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.LocalAverageDepthF1D.__call__)   - [(freestyle.functions.freestyle.functions.MaterialF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.MaterialF0D.__call__)   - [(freestyle.functions.freestyle.functions.Normal2DF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.Normal2DF0D.__call__)   - [(freestyle.functions.freestyle.functions.Normal2DF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.Normal2DF1D.__call__)   - [(freestyle.functions.freestyle.functions.Orientation2DF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.Orientation2DF1D.__call__)   - [(freestyle.functions.freestyle.functions.Orientation3DF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.Orientation3DF1D.__call__)   - [(freestyle.functions.freestyle.functions.QuantitativeInvisibilityF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.QuantitativeInvisibilityF0D.__call__)   - [(freestyle.functions.freestyle.functions.QuantitativeInvisibilityF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.QuantitativeInvisibilityF1D.__call__)   - [(freestyle.functions.freestyle.functions.ReadCompleteViewMapPixelF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.ReadCompleteViewMapPixelF0D.__call__)   - [(freestyle.functions.freestyle.functions.ReadMapPixelF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.ReadMapPixelF0D.__call__)   - [(freestyle.functions.freestyle.functions.ReadSteerableViewMapPixelF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.ReadSteerableViewMapPixelF0D.__call__)   - [(freestyle.functions.freestyle.functions.ShapeIdF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.ShapeIdF0D.__call__)   - [(freestyle.functions.freestyle.functions.TimeStampF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.TimeStampF1D.__call__)   - [(freestyle.functions.freestyle.functions.VertexOrientation2DF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.VertexOrientation2DF0D.__call__)   - [(freestyle.functions.freestyle.functions.VertexOrientation3DF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.VertexOrientation3DF0D.__call__)   - [(freestyle.functions.freestyle.functions.ZDiscontinuityF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.ZDiscontinuityF0D.__call__)   - [(freestyle.functions.freestyle.functions.ZDiscontinuityF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.ZDiscontinuityF1D.__call__)   - [(freestyle.predicates.freestyle.predicates.ContourUP1D method)](freestyle.predicates.html#freestyle.predicates.freestyle.predicates.ContourUP1D.__call__)   - [(freestyle.predicates.freestyle.predicates.DensityLowerThanUP1D method)](freestyle.predicates.html#freestyle.predicates.freestyle.predicates.DensityLowerThanUP1D.__call__)   - [(freestyle.predicates.freestyle.predicates.EqualToChainingTimeStampUP1D method)](freestyle.predicates.html#freestyle.predicates.freestyle.predicates.EqualToChainingTimeStampUP1D.__call__)   - [(freestyle.predicates.freestyle.predicates.EqualToTimeStampUP1D method)](freestyle.predicates.html#freestyle.predicates.freestyle.predicates.EqualToTimeStampUP1D.__call__)   - [(freestyle.predicates.freestyle.predicates.ExternalContourUP1D method)](freestyle.predicates.html#freestyle.predicates.freestyle.predicates.ExternalContourUP1D.__call__)   - [(freestyle.predicates.freestyle.predicates.FalseBP1D method)](freestyle.predicates.html#freestyle.predicates.freestyle.predicates.FalseBP1D.__call__)   - [(freestyle.predicates.freestyle.predicates.FalseUP0D method)](freestyle.predicates.html#freestyle.predicates.freestyle.predicates.FalseUP0D.__call__)   - [(freestyle.predicates.freestyle.predicates.FalseUP1D method)](freestyle.predicates.html#freestyle.predicates.freestyle.predicates.FalseUP1D.__call__)   - [(freestyle.predicates.freestyle.predicates.Length2DBP1D method)](freestyle.predicates.html#freestyle.predicates.freestyle.predicates.Length2DBP1D.__call__)   - [(freestyle.predicates.freestyle.predicates.QuantitativeInvisibilityUP1D method)](freestyle.predicates.html#freestyle.predicates.freestyle.predicates.QuantitativeInvisibilityUP1D.__call__)   - [(freestyle.predicates.freestyle.predicates.SameShapeIdBP1D method)](freestyle.predicates.html#freestyle.predicates.freestyle.predicates.SameShapeIdBP1D.__call__)   - [(freestyle.predicates.freestyle.predicates.ShapeUP1D method)](freestyle.predicates.html#freestyle.predicates.freestyle.predicates.ShapeUP1D.__call__)   - [(freestyle.predicates.freestyle.predicates.TrueBP1D method)](freestyle.predicates.html#freestyle.predicates.freestyle.predicates.TrueBP1D.__call__)   - [(freestyle.predicates.freestyle.predicates.TrueUP0D method)](freestyle.predicates.html#freestyle.predicates.freestyle.predicates.TrueUP0D.__call__)   - [(freestyle.predicates.freestyle.predicates.TrueUP1D method)](freestyle.predicates.html#freestyle.predicates.freestyle.predicates.TrueUP1D.__call__)   - [(freestyle.predicates.freestyle.predicates.ViewMapGradientNormBP1D method)](freestyle.predicates.html#freestyle.predicates.freestyle.predicates.ViewMapGradientNormBP1D.__call__)   - [(freestyle.predicates.freestyle.predicates.WithinImageBoundaryUP1D method)](freestyle.predicates.html#freestyle.predicates.freestyle.predicates.WithinImageBoundaryUP1D.__call__)   - [(freestyle.types.freestyle.types.BinaryPredicate0D method)](freestyle.types.html#freestyle.types.freestyle.types.BinaryPredicate0D.__call__)   - [(freestyle.types.freestyle.types.BinaryPredicate1D method)](freestyle.types.html#freestyle.types.freestyle.types.BinaryPredicate1D.__call__)   - [(freestyle.types.freestyle.types.UnaryPredicate0D method)](freestyle.types.html#freestyle.types.freestyle.types.UnaryPredicate0D.__call__)   - [(freestyle.types.freestyle.types.UnaryPredicate1D method)](freestyle.types.html#freestyle.types.freestyle.types.UnaryPredicate1D.__call__) - [__init__() (freestyle.chainingiterators.freestyle.chainingiterators.ChainPredicateIterator method)](freestyle.chainingiterators.html#freestyle.chainingiterators.freestyle.chainingiterators.ChainPredicateIterator.__init__)   - [(freestyle.chainingiterators.freestyle.chainingiterators.ChainSilhouetteIterator method)](freestyle.chainingiterators.html#freestyle.chainingiterators.freestyle.chainingiterators.ChainSilhouetteIterator.__init__)   - [(freestyle.chainingiterators.freestyle.chainingiterators.pyChainSilhouetteGenericIterator method)](freestyle.chainingiterators.html#freestyle.chainingiterators.freestyle.chainingiterators.pyChainSilhouetteGenericIterator.__init__)   - [(freestyle.chainingiterators.freestyle.chainingiterators.pyFillOcclusionsAbsoluteAndRelativeChainingIterator method)](freestyle.chainingiterators.html#freestyle.chainingiterators.freestyle.chainingiterators.pyFillOcclusionsAbsoluteAndRelativeChainingIterator.__init__)   - [(freestyle.chainingiterators.freestyle.chainingiterators.pyFillOcclusionsAbsoluteChainingIterator method)](freestyle.chainingiterators.html#freestyle.chainingiterators.freestyle.chainingiterators.pyFillOcclusionsAbsoluteChainingIterator.__init__)   - [(freestyle.chainingiterators.freestyle.chainingiterators.pyFillOcclusionsRelativeChainingIterator method)](freestyle.chainingiterators.html#freestyle.chainingiterators.freestyle.chainingiterators.pyFillOcclusionsRelativeChainingIterator.__init__)   - [(freestyle.chainingiterators.freestyle.chainingiterators.pyFillQi0AbsoluteAndRelativeChainingIterator method)](freestyle.chainingiterators.html#freestyle.chainingiterators.freestyle.chainingiterators.pyFillQi0AbsoluteAndRelativeChainingIterator.__init__)   - [(freestyle.chainingiterators.freestyle.chainingiterators.pyNoIdChainSilhouetteIterator method)](freestyle.chainingiterators.html#freestyle.chainingiterators.freestyle.chainingiterators.pyNoIdChainSilhouetteIterator.__init__)   - [(freestyle.chainingiterators.freestyle.chainingiterators.pySketchyChainSilhouetteIterator method)](freestyle.chainingiterators.html#freestyle.chainingiterators.freestyle.chainingiterators.pySketchyChainSilhouetteIterator.__init__)   - [(freestyle.functions.freestyle.functions.ChainingTimeStampF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.ChainingTimeStampF1D.__init__)   - [(freestyle.functions.freestyle.functions.Curvature2DAngleF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.Curvature2DAngleF0D.__init__)   - [(freestyle.functions.freestyle.functions.Curvature2DAngleF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.Curvature2DAngleF1D.__init__)   - [(freestyle.functions.freestyle.functions.CurveNatureF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.CurveNatureF0D.__init__)   - [(freestyle.functions.freestyle.functions.CurveNatureF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.CurveNatureF1D.__init__)   - [(freestyle.functions.freestyle.functions.DensityF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.DensityF0D.__init__)   - [(freestyle.functions.freestyle.functions.DensityF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.DensityF1D.__init__)   - [(freestyle.functions.freestyle.functions.GetCompleteViewMapDensityF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetCompleteViewMapDensityF1D.__init__)   - [(freestyle.functions.freestyle.functions.GetCurvilinearAbscissaF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetCurvilinearAbscissaF0D.__init__)   - [(freestyle.functions.freestyle.functions.GetDirectionalViewMapDensityF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetDirectionalViewMapDensityF1D.__init__)   - [(freestyle.functions.freestyle.functions.GetOccludeeF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetOccludeeF0D.__init__)   - [(freestyle.functions.freestyle.functions.GetOccludeeF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetOccludeeF1D.__init__)   - [(freestyle.functions.freestyle.functions.GetOccludersF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetOccludersF0D.__init__)   - [(freestyle.functions.freestyle.functions.GetOccludersF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetOccludersF1D.__init__)   - [(freestyle.functions.freestyle.functions.GetParameterF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetParameterF0D.__init__)   - [(freestyle.functions.freestyle.functions.GetProjectedXF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetProjectedXF0D.__init__)   - [(freestyle.functions.freestyle.functions.GetProjectedXF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetProjectedXF1D.__init__)   - [(freestyle.functions.freestyle.functions.GetProjectedYF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetProjectedYF0D.__init__)   - [(freestyle.functions.freestyle.functions.GetProjectedYF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetProjectedYF1D.__init__)   - [(freestyle.functions.freestyle.functions.GetProjectedZF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetProjectedZF0D.__init__)   - [(freestyle.functions.freestyle.functions.GetProjectedZF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetProjectedZF1D.__init__)   - [(freestyle.functions.freestyle.functions.GetShapeF0D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetShapeF0D.__init__)   - [(freestyle.functions.freestyle.functions.GetShapeF1D method)](freestyle.functions.html#freestyle.functions.freestyle.functions.GetShapeF1D.__init__)   - [(freestyle.functions.freestyle.functions.GetSteerableViewMapDensityF1D method)](freestyle.functions.html#freest