Render Prompt

curl --request POST \
  --url https://backend.trychatter.ai/sdk/prompt/render \
  --header 'Content-Type: application/json' \
  --data '{
  "id": "<string>",
  "var_mapping": {
    "key1": "value1",
    "key2": 42,
    "key3": [
      "a",
      "list"
    ]
  }
}'

{
  "msg": "<string>",
  "prompt": "<string>"
}