code: function render(engine, str, locals, engineOptions) {
    try {
      var output = engine.render(engine.engine, str, locals, engineOptions)
    } catch(e) {
      throw new Error(
        NAME + ': there was a problem rendering the template:\n' + e)
    }
    return output
  }
docs: Render a string using a template engine
  
  @param {any} engine
  @param {string} str
  @param {Object} locals
  @returns {string}