Decompress_impl.Convenience_deflateSourceval bigstring :
B.Bigstring.t ->
B.Bigstring.t ->
?meth:(X.meth * int) ->
(B.Bigstring.t -> int option -> int) ->
(B.Bigstring.t -> int -> int) ->
(B.bs, B.bs) X.t ->
((B.bs, B.bs) X.t, X.error) result