%top{
    int fun(void) { return 10; }
}
%language c
%%
enter translation_unit { puts("Hello World!"); }
%%

// @BAKE tbsp $@; gcc top_function.tb.c $(pkg-config --libs tree-sitter tree-sitter-c); ./a.out
signed main(void) {
    tbtraverse("int i = 0;");
    return 0;
}