-(AlfrescoRequest *) retrieveLikeCountForNode:(AlfrescoNode *)node
        completionBlock:(AlfrescoNumberCompletionBlock)completionBlock - retrieves the
      number of likes for the specified node.
    Parameters
- (AlfrescoNode *) node
 - The node whose like count is to be retrieved.
 - (AlfrescoNumberCompletionBlock) completionBlock
 - The block that is called with the like count on completion of the operation. The completion block has the format typedef void (^AlfrescoNumberCompletionBlock)(NSNumber *data, NSError *error).
 
Returns
(AlfrescoRequest *)
Example