public. retrieves a file description
| Name | Type | Description |
| filename | string | "=" followed by a double uri-encoded file name |
| pageid | string | either an integer page ID, "home", or "=" followed by a double uri-encoded page title |
The following code example retrieves the description of the file called "myfile.jpg" on the home page:
Plug p = Plug.New("http://deki-hayes/@api/deki");
p.At("users", "authenticate").WithCredentials("admin", "password").Get();
DreamMessage msg = p.At("pages", "home", "files", "=myfile%252ejpg", "description").Get();
String description = msg.AsText();