Macro style::stylesheets::font_feature_values_rule::font_feature_values_blocks

macro_rules! font_feature_values_blocks {
    (
        blocks = [
            $( #[$doc: meta] $name: tt $ident: ident / $ident_camel: ident / $gecko_enum: ident: $ty: ty, )*
        ]
    ) => { ... };
}