docs: function wJson(path, data, options, callback) {
  
      if (typeof options === "function") {
          callback = options;
          options = {};
      } else if (typeof options === "number") {
          options = {
              space: options
          };
      } else if (typeof options === "boolean") {
          options = {
              new_line: options
          };
      }
  
      options = options || {};
  
      options.space = typeof options.space === "number" ? options.space : 2;
      options.new_line = !!options.new_line;
  
      Fs["writeFile" + (typeof callback === "function" ? "" : "Sync")](
          path
        , JSON.stringify(data, null, options.space) + (options.new_line ? "\n" : "")
        , callback
      );
  }