如何提取Int32和Int64类型的方法？

Question

如何抽象化Int32和Int64类型的方法？

具体来说，如何将这些相似的函数重构为核心函数？

let private tryParseInt64 (text:string) =

    let mutable (number:Int64) = 0L

    if Int64.TryParse(text, ref number)
    then Some number
    else None

let private tryParseInt32 (text:string) =

    let mutable (number:Int32) = 0

    if Int32.TryParse(text, ref number)
    then Some number
    else None