You can search for identifiers within the package.
in-package search v0.2.0
Zstandard - fast lossless compression algorithm
exception Error of string
val version : unit -> int * int * int
val compress : level:int -> string -> string
val decompress : int -> string -> string
decompress orig_size s
orig_size specifies size of buffer for decompression (not less than original size of uncompressed s)
orig_size
s