curl --request GET \
  --url https://api.sumvin.com/v0/kyc/documents/required

{
  "_links": {},
  "steps": [
    {
      "step_type": "<string>",
      "has_documents": false,
      "review_answer": "<string>",
      "moderation_comment": "<string>"
    }
  ],
  "all_uploaded": false
}