format

Format defines the "formatter", a plugin that makes sure the response will fit your expectations in terms of format (plain-text/JSON/YAML/CSV), language, length etc.

response:
  # ✔️ Response should be 3 sentences max, in English (US) 
  format:
    - package: floom/response/formatter 
      type: text
      language: en-us
      max-sentences: 3

This response uses Floom default Formatter package located at floom/response/formatter.