class_docstr: Benchmarks for pairwise distances.
code: def time_pairwise_distances(self, *args):
      pairwise_distances(self.X, **self.pdist_params)
  
imports: from sklearn.metrics.pairwise import pairwise_distances
  from .common import Benchmark
  from .datasets import _random_dataset
label_desc: Use image node_id 2 for calling the PairwiseDistancesBenchmark obj's underlying member method code with example usage: obj.time_pairwise_distances() without return types