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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 _stage_output_files(self, file_mapping, dry_run=True):
 """Stage the output files to the scratch area and adjust the arguments accordingly"""

        # print ("Staging output ", file_mapping)
        if self._file_stage is None:
            return
        self._file_stage.copy_from_scratch(file_mapping, dry_run)