This is a hack as the proper solution (https://github.com/rust-lang/rust/issues/99515) is nightly-only. Need to verify that the included files aren't actually included in the final binary.
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impl #ident {
// Call the `include_str!` macro to make sure the Fluent files are tracked
// so when Fluent code changes, the generated code should be rebuild
// TODO: This is a hack that should be replaced with https://github.com/rust-lang/rust/issues/99515 once stable
const _tracked_paths: [&str; #path_count] = [#(include_str!(#tracked_paths)),*];
}