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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 _input_as_multifile(self, data):
 """For use with the -profile option This input handler expects data to be a tuple containing two filenames. Index 0 will be set to -in1 and index 1 to -in2 """

        if data:
            try:
                filename1, filename2 = data
            except:
                raise ValueError, "Expected two filenames"

            self.Parameters['-in'].off()
            self.Parameters['-in1'].on(filename1)
            self.Parameters['-in2'].on(filename2)
        return ''