Generics are awesome. They allow you to do partial typing. You don't specify the exact type but you constrain the output type based on the input type. So you ha

Generics are awesome. They allow you to do partial typing. You don't specify the exact type but you constrain the output type based on the input type. So you have functions that can operate on many types but still have strong typing. Wantarray is not a generic implementation. It's closer to reflection. You can detect the type of variable the caller is putting your functions result in. Then you can branch your program based on the variable type that the caller wants. I guess this is similar to type inference but not exactly as it's not part of the type system. For example, if they want an array return the amounts of each transaction in an array if not return the sum of the transaction amounts.