code: def _config_stress(self):
          
          # Configure stress_process
          self.stress_exe = None
          stress_installed = False
          self.stress_exe = which('stress')
          if self.stress_exe:
              stress_installed = True
          else:
              self.stress_exe = which('stress-ng')
              if self.stress_exe:
                  stress_installed = True
  
          self.firestarter = None
          firestarter_installed = False
          if os.path.isfile('./FIRESTARTER/FIRESTARTER'):
              self.firestarter = os.path.join(os.getcwd(),
                                              'FIRESTARTER', 'FIRESTARTER')
              firestarter_installed = True
          else:
              firestarter_exe = which('FIRESTARTER')
              if firestarter_exe is not None:
                  self.firestarter = firestarter_exe
                  firestarter_installed = True
  
          return StressController(stress_installed, firestarter_installed)
docs: Configures the possible stress processes and modes