Derive builder is a procedural macro. It will run at compile time and transform your program's source code.

Adding derive_builder macro(s) as a dependency

If you have cargo-edit installed, run this command in a terminal, in your project's directory:

cargo add derive_builder

To add it manually, edit your project's Cargo.toml file and add to the [dependencies] section:

derive_builder = "0.9.0"

You may need to import the macro(s) with use derive_builder::*.

Read the derive_builder documentation.

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