SequentialChain and Output_Variables

[seanpark98]

Does SequentialChain not support Output_Variables and Output_Key any more? I'm seeing a lot of examples online where this was possible, but somehow in the documentation, its not to be found.

[seanpark98]

I checked the codebase and it supposedly exists?

class SequentialChain(Chain):
    """Chain where the outputs of one chain feed directly into next."""

    chains: List[Chain]
    input_variables: List[str]
    output_variables: List[str]  #: :meta private: