OPA example does not work on opa v1

[Quesys-tech]

Which example does this problem concern?

opa

Please describe the problem?

OPA v1 cannot parse files (auth.rego, config.rego) since opa v1 enforce if syntax.
https://www.openpolicyagent.org/docs/latest/v0-upgrade/#enforce-use-of-if-and-contains-keywords-in-rule-head-declarations