docs: def configure_output(verbosity=0, output_levels=None, quiet=False):
      """
      Configure verbosity level through Fabric's output managers.
  
      Provides a default mapping from verbosity levels to output types.
  
      :param verbosity: an integral verbosity level
      :param output_levels: an optional mapping from Fabric output types to verbosity
      :param quiet: specifies that all output should be suppressed
  
      This function is designed to work with command line argument parsing.
      For example:
  
          # configure argparse
          parser.add_option("-q", dest="quiet", action="store_true", default=False)
          parser.add_option("-v", dest="verbosity", action="count", default=0)
  
          # configure output
          configure_output(options.verbosity, options.quiet)
      """
      verbosity = verbosity if not quiet else -1
  
      output_levels = output_levels or {
          "status": 0,
          "aborts": 0,
          "user": 1,
          "warnings": 1,
          "running": 1,
          "stdout": 2,
          "stderr": 2,
          "debug": 2
      }
  
      # configure output manager levels via verbosity
      for manager, level in output_levels.iteritems():
          output[manager] = level <= verbosity
  
      # Hook up Python warnings to warning output manager
      warnings.showwarning = warn_via_fabric
      warnings.simplefilter("always", UserWarning)