curl -X POST -H "Content-Type: application/json" \
  -H "Authorization: Bearer $(gcloud auth application-default print-access-token)" \
  https://automl.googleapis.com/v1beta1/projects/788634704872/locations/us-central1/models/IOD3440974415683125248:predict \
  -d @request.json

{
  "payload": {
    "image": {
      "imageBytes": "YOUR_BASE64_ENCODED_IMAGE_BYTES"
    }
  }
}