| 
| singleton   | boost::function< Signature > | 
|   | 
| singleton   | boost::function0< R > | 
|   | 
| singleton   | boost::function1< R, T1 > | 
|   | 
| singleton   | boost::function2< R, T1, T2 > | 
|   | 
| singleton   | boost::function3< R, T1, T2, T3 > | 
|   | 
| singleton   | boost::function4< R, T1, T2, T3, T4 > | 
|   | 
| singleton   | boost::function5< R, T1, T2, T3, T4, T5 > | 
|   | 
| singleton   | boost::function6< R, T1, T2, T3, T4, T5, T6 > | 
|   | 
| singleton   | boost::function7< R, T1, T2, T3, T4, T5, T6, T7 > | 
|   | 
| singleton   | boost::function8< R, T1, T2, T3, T4, T5, T6, T7, T8 > | 
|   | 
| singleton   | boost::function9< R, T1, T2, T3, T4, T5, T6, T7, T8, T9 > | 
|   | 
| singleton   | boost::function10< R, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10 > | 
|   |