{"ast_node_type":"variable","tokens":[{"end":65,"kind":"keyword","start":0,"text":"let"}]}
    let module = ctx.sema.file_to_module_def(ctx.vfs_file_id())?;
    let source_file = ctx.find_node_at_offset::<ast::SourceFile>()?;
    // Enable this assist if the user select all "meaningful" content in the source file