docstr: Perform a single run of the suite.
docstr_tok: ["Perform","a","single","run","of","the","suite","."]
code: def _run_single(self, client_func):
      """Perform a single run of the suite."""
      with multiprocessing.Pool(processes=self.num_clients) as pool:
          samples = pool.map(client_func, range(self.num_clients))
          least_sq(numpy.array(samples).flatten())
  
file_path: perspective/python/perspective/bench/tornado/bench.py
imports: import logging
  import argparse
  import numpy
  import multiprocessing
  import asyncio
  import perspective
  from functools import partial
label_desc: Use image node_id 4 for calling the PerspectiveTornadoBenchmark obj's underlying member method code with example usage: obj._run_single(client_func) without return types