def METHOD_NAME(
    mock_request,
    webhook_plugin,
    checkout,
):
    # given
    plugin = webhook_plugin()
    lines, _ = fetch_checkout_lines(checkout)
    checkout_info = fetch_checkout_info(checkout, lines, plugin)
    # when
    tax_data = plugin.get_taxes_for_checkout(checkout_info, lines, None)
    # then
    assert mock_request.call_count == 0
    assert tax_data is None