def _cost(self, target):
    if target not in self._cost_cache:
      self._cost_cache[target] = self._size_estimator(target.sources_relative_to_buildroot())
    return self._cost_cache[target]
dataset/ETHPy150Open pantsbuild/pants/src/python/pants/backend/jvm/tasks/jvm_dependency_usage.py/DependencyUsageGraph._cost/original