code: def time_quickbundles_metric(self):
      qb = QB_New(
          self.basic_parameters.get("threshold", 10),
          metric=self.custom_metric,
      )
      _ = qb.cluster(self.streamlines)
  
file_path: dipy/benchmarks/benchmarks/bench_segment.py
imports: import numpy
  from dipy.data import get_fnames
  from dipy.io.streamline import load_tractogram
  from dipy.tracking.streamline import Streamlines, set_number_of_points
  from dipy.segment.metricspeed import Metric
  from dipy.segment.clustering import QuickBundles
  from dipy.segment.mask import bounding_box
label_desc: Use image node_id 3 for calling the BenchQuickbundles obj's underlying member method code with example usage: obj.time_quickbundles_metric() without return types