Source from which this fact chunk was retrieved. If it was retrieved
from the GroundingFacts provided in the request then this field will
contain the index of the specific fact from which this chunk was
retrieved.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07 UTC."],[[["\u003cp\u003eThis document provides reference documentation for the \u003ccode\u003eFactChunk\u003c/code\u003e class within the Google Cloud Discovery Engine v1 API, specifically version 1.2.0.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eFactChunk\u003c/code\u003e class represents a fact chunk and includes properties such as \u003ccode\u003eChunkText\u003c/code\u003e, \u003ccode\u003eIndex\u003c/code\u003e, \u003ccode\u003eSource\u003c/code\u003e, and \u003ccode\u003eSourceMetadata\u003c/code\u003e for managing and understanding fact chunk data.\u003c/p\u003e\n"],["\u003cp\u003eThe latest version available of this API is 1.6.0, while several prior versions (from 1.0.0-beta06 to 1.5.0) are also documented and linked.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eFactChunk\u003c/code\u003e class implements multiple interfaces, including \u003ccode\u003eIMessage\u003c/code\u003e, \u003ccode\u003eIEquatable\u003c/code\u003e, \u003ccode\u003eIDeepCloneable\u003c/code\u003e, and \u003ccode\u003eIBufferMessage\u003c/code\u003e, and inherits from \u003ccode\u003eobject\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThere are two constructor overloads provided for the \u003ccode\u003eFactChunk\u003c/code\u003e class which are a default \u003ccode\u003eFactChunk()\u003c/code\u003e and a copy \u003ccode\u003eFactChunk(FactChunk other)\u003c/code\u003e constructor.\u003c/p\u003e\n"]]],[],null,[]]
