macro_rules! generate_config_use_clauses {
({$({ $variant_name:ident, $sink_type:ty, $($config_type:tt)+ }), *}) => { ... };
}
macro_rules! generate_config_use_clauses {
({$({ $variant_name:ident, $sink_type:ty, $($config_type:tt)+ }), *}) => { ... };
}