Need help from a Rust expert to make a rs(have a spec function) extracted from a Rust project.

[primal briar]

I need help to build a function from a project.
Please reach me if you could help

How I can extract this subcommand from the project to make a function?
https://github.com/ordinals/ord/blob/master/src/subcommand/decode.rs

Then i need to compile it to Wasm to use in js