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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 process(self, batch, *args, **kwargs):
 """ Process a list of examples to create a batch. Postprocess the batch with user-provided Pipeline. Args: batch (list(object)):
 A list of object from a batch of examples. Returns: object: Processed object given the input and custom postprocessing Pipeline. """

        if self.postprocessing is not None:
            batch = self.postprocessing(batch)
        return batch