We have some examples of libraries that make modifications to otherwise standard templates. For example, https://github.com/googleapis/java-bigtable/blob/main/.kokoro/presubmit/integration.cfg#L9-L12 adds custom IT args to this standard template: https://github.com/googleapis/synthtool/blob/master/synthtool/gcp/templates/java_library/.kokoro/presubmit/integration.cfg. As such, we need to exclude it from owlbot and any new iterations of these templates need to be handled manually (see googleapis/java-bigtable#1255 and fix googleapis/java-bigtable#1258).

It would be great if owlbot could preserve known additions to templates so we can still receive updates without having to do manual work on them in a repeated way.