altair.DerivedStream ==================== .. currentmodule:: altair .. autoclass:: DerivedStream .. automethod:: __init__ .. rubric:: Methods .. autosummary:: ~DerivedStream.__init__ ~DerivedStream.copy ~DerivedStream.from_dict ~DerivedStream.from_json ~DerivedStream.resolve_references ~DerivedStream.to_dict ~DerivedStream.to_json ~DerivedStream.validate ~DerivedStream.validate_property