public enum AnswerStyle| ANSWER_STYLE_UNSPECIFIED | 0 | Unspecified answer style. |
| ABSTRACTIVE | 1 | Succinct but abstract style. |
| EXTRACTIVE | 2 | Very brief and extractive style. |
| VERBOSE | 3 | Verbose style including extra details. The response may be formatted as a sentence, paragraph, multiple paragraphs, or bullet points, etc. |