in src/main/java/com/epam/digital/data/platform/el/juel/SignatureContentJuelFunction.java [46:55]
public static SignDataDto signature_content(String data, SignFormat container) {
var restClient = getBean(DigitalSignatureRestClient.class);
var result = sendRequest(data, container, SIGNATURE_UNABLE_GET_CONTENT, restClient::content);
var allContent = result.getContent();
var firstContent = allContent.isEmpty() ? null : allContent.get(0);
return SignDataDto.builder()
.allContent(allContent)
.content(firstContent)
.build();
}