* reorganize and optimize * Update bin/node/testing/benches/import.rs Co-Authored-By: Bastian Köcher <bkchr@users.noreply.github.com> * Update bin/node/testing/benches/import.rs Co-Authored-By: Bastian Köcher <bkchr@users.noreply.github.com> * Update bin/node/testing/benches/import.rs Co-Authored-By: Bastian Köcher <bkchr@users.noreply.github.com> * review suggestions * fix build Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>