description

# RegisterBinaryCallbackHandler typedef

ZoneBinaryCallback<R, T1, T2> RegisterBinaryCallbackHandler <R, T1, T2>(Zone self, ZoneDelegate parent, Zone zone, R f(T1 arg1, T2 arg2))

## Implementation

    typedef RegisterBinaryCallbackHandler
        = ZoneBinaryCallback<R, T1, T2> Function<R, T1, T2>(Zone self,
            ZoneDelegate parent, Zone zone, R Function(T1 arg1, T2 arg2) f);