code: function isolateBadConfig(text, config, problemType) {
          for (const ruleId of Object.keys(config.rules)) {
              const reducedConfig = Object.assign({}, config, { rules: { [ruleId]: config.rules[ruleId] } });
              let fixResult;
  
              try {
                  fixResult = linter.verifyAndFix(text, reducedConfig, {});
              } catch (err) {
                  return reducedConfig;
              }
  
              if (fixResult.messages.length === 1 && fixResult.messages[0].fatal && problemType === "autofix") {
                  return reducedConfig;
              }
          }
          return config;
      }
docs: Tries to isolate the smallest config that reproduces a problem
  @param {string} text The source text to lint
  @param {Object} config A config object that causes a crash or autofix error
  @param {("crash"|"autofix")} problemType The type of problem that occurred
  @returns {Object} A config object with only one rule enabled that produces the same crash or autofix error, if possible.
  Otherwise, the same as `config`