Macro create_enum 

macro_rules! create_enum {
    (
        $name:ident,
        [ $($custom_derives:ident),* ],
        $($(#[$variant_attr:meta])* $variant:ident),+
        $(,)?
    ) => { ... };
    (
        $serialize_all:expr,
        $name:ident,
        [ $($custom_derives:ident),* ],
        $($(#[$variant_attr:meta])* $variant:ident),+
        $(,)?
    ) => { ... };
}