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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 delete_file(self, path):
 """Delete the file or directory at path. """

        self.log.debug("S3contents.GenericManager: delete_file '%s'", path)
        if self.file_exists(path) or self.dir_exists(path):
            self.fs.rm(path)
        else:
            self.no_such_entity(path)