Create data model

curl --request POST \
  --url https://api.gateway.tech/data-models \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '{
  "description": "<string>",
  "schema": {},
  "tags": [
    "<string>"
  ],
  "title": "<string>"
}'

{
  "created_at": "<string>",
  "created_by": "<string>",
  "deleted_at": "<string>",
  "description": "<string>",
  "id": 123,
  "schema": {},
  "tags": [
    "<string>"
  ],
  "title": "<string>",
  "updated_at": "<string>"
}