I have two functions:

export const processCar = (params: IParams): Car => {
    // ...
}

export const processBoat = (params: IParams): Boat => {
    // ...
}

I have another function to which the first two functions will be passed as arguments:

const processOrNull = (func: any): any => {
    const newFunc = (params: IParams): any => {
        // Perform some check. If it fails, return null. If it passes...

        return func(params);
    }
    return newFunc;
}

export const processCarOrNull = processOrNull(processCar);  // (IParams) => Car | null;
export const processBoatOrNull = processOrNull(processBoat);    // (IParams) => Boat | null;

I want the result from processOrNull to be typed as either (IParams) => (Car | null) or (IParams) => (Boat | null), depending on whether the passed function returns a Car or a Boat.

Can I do this with generics and if so, how?