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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 _add_implied_commands(self):
 """ Add the commands that are implied by the blueprint. """

        if len(self.get_added_columns()) and not self._creating():
            self._commands.insert(0, self._create_command("add"))

        if len(self.get_changed_columns()) and not self._creating():
            self._commands.insert(0, self._create_command("change"))

        return self._add_fluent_indexes()