 
     The majority of the wrapped functions provided by these extensions use this as
     their basis.
+    
+    The completion block is run on the given `queue`.
 
     - parameter block: a closure which receives YapDatabaseReadWriteTransaction and returns T
     - parameter queue: a dispatch_queue_t, defaults to main queue, can be ommitted in most cases.

    The majority of the wrapped functions provided by these extensions use this as
    their basis.

    - parameter block: a closure which receives YapDatabaseReadTransaction and returns T
    - parameter queue: a dispatch_queue_t, defaults to main queue, can be ommitted in most cases.
    - parameter completion: a closure which receives T and returns Void.


    The majority of the wrapped functions provided by these extensions use this as
    their basis.
     
    The completion block is run on the given `queue`.

    - parameter block: a closure which receives YapDatabaseReadTransaction and returns T
    - parameter queue: a dispatch_queue_t, defaults to main queue, can be ommitted in most cases.
