SwiftPM unary operator

Question

I have simple method in extension:

postfix operator |

extension Bool {
    
    static postfix func |<T: Numeric> (p: Self) -> T {
        p ? 1 : 0
    }

}

But in Tests target is not possible to use this unary operator:

let intTrue: Double = true|
let intFalse: Int = false|

Error

'|' is not a prefix unary operator

I'm trying to convert library to SwiftPM:

https://github.com/El-Machine/Pipe