curl --request POST \
  --url https://realtime-api.voiceflow.com/v1/stable/message/batch \
  --header 'Authorization: Bearer <token>'
  --header 'Content-Type: application/json' \
  --data '{
  "messages": [
    {
      "variants": [
        "<StableMessageVariantCreateRequest>"
      ]
    }
  ]
}'

const response = await fetch('https://realtime-api.voiceflow.com/v1/stable/message/batch?projectID=<projectID>&environmentAlias=<environmentAlias>', {
  method: 'POST',
  headers: {
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    "messages": [
      {
        "variants": [
          "<StableMessageVariantCreateRequest>"
        ]
      }
    ]
  }),
});
const data = await response.json();

import requests

response = requests.post(
    'https://realtime-api.voiceflow.com/v1/stable/message/batch?projectID=<projectID>&environmentAlias=<environmentAlias>',
    headers={'Authorization': 'Bearer <token>'},
    json={
      "messages": [
        {
          "variants": [
            "<StableMessageVariantCreateRequest>"
          ]
        }
      ]
    },
)
data = response.json()

vf message create-many --project-id <projectID> --environment-alias <environmentAlias> \
  < body.json