code: function lastPathSegmentIsAParameter (req) {
    let lastSlash = req.swagger.pathName.lastIndexOf("/");
    let lastParam = req.swagger.pathName.lastIndexOf("{");
    return (lastParam > lastSlash);
  }
docs: Determines whether the last path segment is a Swagger parameter.
  
  For example, the following paths are all considered to be resource requests,
  because their final path segment contains a parameter:
  
  - /users/{username}
  - /products/{productId}/reviews/review-{reviewId}
  - /{country}/{state}/{city}
  
  Conversely, the following paths are all considered to be collection requests,
  because their final path segment is NOT a parameter:
  
  - /users
  - /products/{productId}/reviews
  - /{country}/{state}/{city}/neighborhoods/streets
  
  @param   {Request} req
  @returns {boolean}