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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 close(self):
 """Explicitly close open file handles, databases etc."""

        try:
            self.payload.close()
        except:
            pass
        try:
            self.model.close()
        except:
            pass
        try:
            self.fresh_index.close()
        except:
            pass
        try:
            self.opt_index.close()
        except:
            pass
        try:
            self.fresh_docs.terminate()
        except:
            pass