Identifiers of documents cited by this section of the generated reply.
The index of text that the citation ends after, counting from zero. Note: Numbers greater than Number.MAX_SAFE_INTEGER will result in rounding issues.
The index of text that the citation starts at, counting from zero. Note: Numbers greater than Number.MAX_SAFE_INTEGER will result in rounding issues.
The text of the citation
A section of the generated reply which cites external knowledge.