title: Swagger Annotation Object
body: <p>When I read the <a href="http://docs.swagger.io/swagger-core/current/apidocs/index.html" rel="nofollow noreferrer">Swagger Annotations apidocs</a>, I just find that some annotations are not for class or method just like <code>@Info</code> and <code>@Contact</code>.  
  For example, the description of <code>@Info</code> is "High-level metadata for a Swagger definition ". Is it just an annotation object? How to use it? </p>