package envconf
type DataType int
const (
    TypeNone DataType = iota
    TypeInt DataType = iota
    TypeDuration DataType = iota
    TypeString DataType = iota
    TypeBool DataType = iota
)

func (dtype DataType) String()(string) {
    types := make(map[DataType]string)
    types[TypeNone] = "none"
    types[TypeInt] = "int"
    types[TypeDuration] = "duration"
    types[TypeString] = "string"
    types[TypeBool] = "bool"
    str, ok := types[dtype]
    if ok {
        return str
    }
    return "invalid"
}