How to create a dictionary in zstd (zstandard) packing algorithms?

Question

API

Found the ZSTD compression algorithm . It has examples of use. And in particular, there are examples of using an external dictionary in which both the speed is higher and the compression is better ( Dictionary compression and Dictionary decompression ).
In the examples, the dictionary is loaded from a file.

However, it is not clear how to create this dictionary file? Can someone suggest?

Answer 1

The documentation says how.
API: facebook.github.io/zstd/zstd_manual.html#Chapter10