code: function yamlStringify (value, replacer, space) {
      try {
        var indent = (typeof space === "string" ? space.length : space) || 2;
        return yaml.safeDump(value, { indent: indent });
      }
      catch (e) {
        if (e instanceof Error) {
          throw e;
        }
        else {
          // https://github.com/nodeca/js-yaml/issues/153
          throw ono(e, e.message);
        }
      }
    }
docs: Converts a JavaScript value to a YAML string.
  
  @param   {*} value - The value to convert to YAML
  @param   {function|array} replacer - Not currently supported. Provided for consistency with {@link JSON.stringify}
  @param   {string|number} space - The number of spaces to use for indentation, or a string containing the number of spaces.
  @returns {string}