| FileUpload | 
 Represents a file-upload from an HTTP multipart form submission. 
 | 
| LanguageHeader | 
 A parsed language header. 
 | 
| MIMEHeader | 
  | 
| ParsedHeaderValues | 
 A container with the request's headers that are meaningful enough to be parsed
 Contains:
 
 Accept -> MIME header, parameters and sortable
 Accept-Charset -> Parameters and sortable
 Accept-Encoding -> Parameters and sortable
 Accept-Language -> Parameters and sortable
 Content-Type -> MIME header and parameters
  
 | 
| Route | 
 A route is a holder for a set of criteria which determine whether an HTTP request or failure should be routed
 to a handler. 
 | 
| Router | 
A router receives request from an  HttpServer and routes it to the first matching
  Route that it contains.  
 | 
| RoutingContext | 
 Represents the context for the handling of a request in Vert.x-Web. 
 | 
| Session | 
 Represents a browser session. 
 |