Numbering Enum

enum Numbering {
    case pages(template: String, start: UInt64?)
    case bates(prefix: String, digits: UInt32, suffix: String, start: UInt64)
}

public record Numbering {
    public record Pages(string template, ulong? start) : Numbering
    public record Bates(string prefix, uint digits, string suffix, ulong start) : Numbering
}

pub enum Numbering {
    Pages { template: String, start: Option<u64> },
    Bates { prefix: String, digits: u32, suffix: String, start: u64 },
}