Represents article answer.
| JSON representation | 
|---|
| { "title" : string , "uri" : string , "snippets" : [ string ] , "confidence" : number , "metadata" : { string : string , ... } , "answerRecord" : string } | 
| Fields | |
|---|---|
| title |   The article title. | 
| uri |   The article URI. | 
| snippets[] |   Article snippets. | 
| confidence |   Article match confidence. The system's confidence score that this article is a good match for this conversation, as a value from 0.0 (completely uncertain) to 1.0 (completely certain). | 
| metadata |   A map that contains metadata about the answer and the document from which it originates. An object containing a list of  | 
| answerRecord |   The name of answer record, in the format of "projects/  | 

