{"ast_node_type":"variable","tokens":[{"end":54,"kind":"keyword","start":0,"text":"let"}]}
    let crate_name = std::env::var("CARGO_CRATE_NAME")
pub(crate) fn fluent_messages(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
        // If `CARGO_CRATE_NAME` is missing, then we're probably running in a test, so use