FileSystemService.undoCheckOutFileById Method
        
 Discards the changes to the checked out file with the specified ID, and cancels the check out.
 
         
        Parameters
        
            - id
            
 
            - 
                
Type: String
The ID of the file to undo check out. 
        
        Return Value
        
Type: jQuery.Promise
        
Value: Object
        
A promise object that is resolved when the call is complete.
 See Dundas.BI.WebApi.Models.UndoCheckOutResultData for the structure of the returning object.