code: def time_set_number_of_points_arrseq(self):
      streamlines = self.data["streamlines_arrseq"]
      set_number_of_points(streamlines, 50)
  
file_path: dipy/benchmarks/benchmarks/bench_tracking.py
imports: import numpy
  from dipy.data import get_fnames
  from dipy.io.streamline import load_tractogram
  from dipy.tracking.streamline import set_number_of_points, length
  from dipy.tracking.streamlinespeed import compress_streamlines
  from dipy.tracking import Streamlines
label_desc: Use image node_id 3 for calling the BenchStreamlines obj's underlying member method code with example usage: obj.time_set_number_of_points_arrseq() without return types