public List<String> groups() {
        return this.groups == null ? List.of() : this.groups;
    }
@return groups contains group membership of the user that created the CertificateSigningRequest. Populated by the API server on creation and immutable.
sdk/java/src/main/java/com/pulumi/kubernetes/certificates/v1/outputs/CertificateSigningRequestSpecPatch.java