zstd_cctx               Initialise a ZSTD compression context
zstd_cctx_settings      Get the configuration settings of a compression
                        context
zstd_compress           Compress/Decompress raw vectors and character
                        strings.
zstd_dctx               Initialise a ZSTD decompression context
zstd_dctx_settings      Get the configuration settings of a
                        decompression context
zstd_dict_id            Get the Dictionary ID of a dictionary or a
                        vector compressed data.
zstd_serialize          Serialize/Unserialize arbitrary R objects to a
                        compressed stream of bytes using Zstandard
zstd_train_dict_compress
                        Train a dictionary for use with
                        'zstd_compress()' and 'zstd_decompress()'
zstd_train_dict_serialize
                        Train a dictionary for use with
                        'zstd_serialize()' and 'zstd_unserialize()'
zstd_version            Get version string of zstd C library
