Macro littlefs2::const_ram_storage

macro_rules! const_ram_storage {
    (

    name=$Name:ident,
    trait=$StorageTrait:path,
    erase_value=$erase_value:expr,
    read_size=$read_size:expr,
    write_size=$write_size:expr,
    cache_size_ty=$cache_size:path,
    block_size=$block_size:expr,
    block_count=$block_count:expr,
    lookahead_size_ty=$lookahead_size:path,
    filename_max_plus_one_ty=$filename_max_plus_one:path,
    path_max_plus_one_ty=$path_max_plus_one:path,
    result=$Result:ident,

) => { ... };
    ($Name:ident, $bytes:expr) => { ... };
}