Value3Callback<A, B, C>  typedef 
 
        Value3Callback<A, B, C> =
     void Function(A value1, B value2)
     
    
    
Implementation
typedef Value3Callback<A, B, C> = void Function(A value1, B value2);typedef Value3Callback<A, B, C> = void Function(A value1, B value2);