anchor.diff:  |getPreviewLink |preview |fileId |java.net.URL
   
   |getFileThumbnail |thumbnail |fileId, fileType, minWidth, minHeight, maxWidth, maxHeight |byte[]
  -|=======================================================================
  +|===
   
   URI Options for _files_
   
   [width="100%",cols="10%,90%",options="header"]
  -|=======================================================================
  +|===
   |Name |Type
   
   |parentFolderId |String
  
positive.code: |===
  // endpoint options: END
  
  ### URI format
  
  [source,java]
  --------------------------------------------
      box://endpoint-prefix/endpoint?[options]
  --------------------------------------------
  
  Endpoint prefix can be one of:
  
  * collaborations
  * comments
  
negative.code: as follows:
  
  [source,java]
  ----
  from("direct:foo")
      .setHeader("CamelBox.fileId", header("fileId"))
      .setHeader("CamelBox.output", header("output"))
      .to("box://files/download")
      .to("file://...");
  ----
  