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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 check_inputs(self):
 """ Check for the existence of input files """

        self.inputs = self.expand_filenames(self.inputs)
        result = False
        if len(self.inputs) == 0 or self.files_exist(self.inputs):
            result = True
        else:
            print("Not executing task. Input file(s) do not exist.")
        return result