OSSL_CRMF_CERTTEMPLATE_get0_serialNumber
const ASN1_INTEGER *serial = OSSL_CRMF_CERTTEMPLATE_get0_serialNumber(tmpl);
serial = OSSL_CRMF_CERTTEMPLATE_get0_serialNumber(tmpl);
const ASN1_INTEGER *OSSL_CRMF_CERTTEMPLATE_get0_serialNumber(const OSSL_CRMF_CERTTEMPLATE *tmpl);