Macro icu_properties::props::impl_value_getter

macro_rules! impl_value_getter {
    (
        // the marker type for names lookup (name_to_enum, enum_to_short_name, enum_to_long_name)
        markers: $marker_n2e:ident / $singleton_n2e:ident $(, $marker_e2sn:ident / $singleton_e2sn:ident, $marker_e2ln:ident / $singleton_e2ln:ident)?;
        impl $ty:ident {
            $(#[$attr_n2e:meta])*
            $vis_n2e:vis fn $name_n2e:ident() / $cname_n2e:ident();
            $(

                $(#[$attr_e2sn:meta])*
                $vis_e2sn:vis fn $name_e2sn:ident() / $cname_e2sn:ident() -> $mapper_e2sn:ident / $mapper_e2snb:ident;
                $(#[$attr_e2ln:meta])*
                $vis_e2ln:vis fn $name_e2ln:ident() / $cname_e2ln:ident() -> $mapper_e2ln:ident / $mapper_e2lnb:ident;
            )?
        }
    ) => { ... };
}