class_docstr: Host the results of the benchmark suite over a websocket.
class_docstr_tok: ["Host","the","results","of","the","benchmark","suite","over","a","websocket","."]
code: def set_default_headers(self):
      self.set_header("Access-Control-Allow-Origin", "*")
      self.set_header(
          "Access-Control-Allow-Headers", "x-requested-with"
      )
      self.set_header(
          "Access-Control-Allow-Methods", "POST, GET, OPTIONS"
      )
  
imports: import logging
  import os
  import sys
  import signal
  import subprocess
  import venv
  import tornado
  from timeit import timeit
  from perspective import Table, PerspectiveManager, PerspectiveTornadoHandler
label_desc: Use image node_id 1 for calling the BenchmarkTornadoHandler obj's underlying member method code with example usage: obj.set_default_headers() without return types