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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 _set_target_root_count_in_runtracker(self):
 """Sets the target root count in the run tracker's daemon stats object."""

    # N.B. `self._target_roots` is always an expanded list of `Target` objects as
    # provided by `GoalRunner`.
    target_count = len(self._target_roots)
    self.run_tracker.pantsd_stats.set_target_root_size(target_count)
    return target_count