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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 task_annotate(self, task, annotation):
 """ Annotates a task. """

        self._execute(
            task['uuid'],
            'annotate',
            '--',
            annotation
        )
        id, annotated_task = self.get_task(uuid=task[six.u('uuid')])
        return annotated_task