ue;
      } else {
        // Simple property set
        prop[path] = value;
      }
      return parts.join('.');
    }

  };

  /**
   * Returns true if the given string is a structured data path (has dots).
   *
   * This function is deprecated.  Use `Polymer.Path.isPath` instead.
   *
   * Example:
   *
   * ```
   * Polymer.Path.isDeep('foo.bar.baz') // true
   * Polymer.Path.isDeep('foo')         // false
   * ```
   *
   * @deprecated
   * @memberof Polymer.Path
   * @param {string} path Path string