contrib/educational_decoder/zstd_decompress.h

size_t ZSTD_decompress(void *dst, size_t dst_len, const void *src,
                       size_t src_len);
size_t ZSTD_decompress_with_dict(void *dst, size_t dst_len, const void *src,
                                 size_t src_len, const void *dict,
                                 size_t dict_len);