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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 complete(self):
 """Gets a list of completion objects for the symbol under the cursor."""

        if self._possible is None:
            self._possible = []
            for possible in self.names:
                c = Completion(self.context, self.names[possible], len(self.context.symbol))
                self._possible.append(c)

        return self._possible