include sig ... end
Sourceval hash_fold_t :
'a Base__Ppx_hash_lib.hash_fold ->
'a t Base__Ppx_hash_lib.hash_fold Sourceval compare :
'a Base__Ppx_compare_lib.compare ->
'a t Base__Ppx_compare_lib.compare Sourceval map : ('a -> 'b) -> 'a SList.t -> 'b SList.t