public static < T1 , T2 , R > BiFunction < T1 , T2 , R > spy2nd ( BiFunction < T1 , T2 , R > function , Box < T2 > param2 ) { return spy ( function , Box . < R > empty ( ) , Box . < T1 > empty ( ) , param2 ) ; }
Proxies a binary function spying for second parameter .