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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_transformation(name: str):
 """Get a transformation function and error if its name is not registered. :param name: The name of a function to look up :return: A transformation function :raises MissingPipelineFunctionError: If the given function name is not registered """

    func = mapped.get(name)

    if func is None:
        raise MissingPipelineFunctionError('{} is not registered as a pipeline function'.format(name))

    return func