amfiteatr_proc_macro is a procedural macro. It will run at compile time and transform your program's source code.
Adding amfiteatr_proc_macro macro(s) as a dependency
Run this command in a terminal, in your project's directory:
cargo add amfiteatr_proc_macro
To add it manually, edit your project's Cargo.toml file and add to the [dependencies] section:
amfiteatr_proc_macro = "0.12.0"
You may need to import the macro(s) with use amfiteatr_proc_macro::*.
amfiteatr_proc_macro documentation.