code: def _varscan_options_from_config(config):
      
      opts = ["--min-coverage 5", "--p-value 0.98", "--strand-filter 1"]
      resources = config_utils.get_resources("varscan", config)
      if resources.get("options"):
          opts += [str(x) for x in resources["options"]]
      return opts
docs: Retrieve additional options for VarScan from the configuration.