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Abstract TFX executor class.
Constructs a beam based executor.
Do( input_dict, output_dict, exec_properties )
Execute underlying component implementation.
input_dict: Input dict from input key to a list of Artifacts. These are often outputs of another component in the pipeline and passed to the component by the orchestration system.
output_dict: Output dict from output key to a list of Artifacts. These are often consumed by a dependent component.
exec_properties: A dict of execution properties. These are inputs to pipeline with primitive types (int, string, float) and fully materialized when a pipeline is constructed. No dependency to other component or later injection from orchestration systems is necessary or possible on these values.