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"""Python Dataflow error classes."""
"""Base class for all Beam errors."""
"""An error in the pipeline object (e.g. a PValue not linked to it)."""
"""An error related to a PValue object (e.g. value is not computed)."""
"""An error related to a Runner object (e.g. cannot find a runner to run)."""
"""An error related to a ValueProvider object raised during runtime."""
"""An error related to a side input to a parallel Do operation."""
"""An error related to a PTransform object."""