# jsonData(includeReportMetadata:includeTranscripts:jsonOptions:) Returns the evaluation results as JSON data. ``` func jsonData(includeReportMetadata: Bool = false, includeTranscripts: Bool = false, jsonOptions: JSONSerialization.WritingOptions = [.prettyPrinted, .sortedKeys]) throws -> Data ``` ## Parameters `includeReportMetadata` Whether to include report metadata. Defaults to `false`. `includeTranscripts` Whether to encode each row’s transcript into the `Transcript` column as JSON. Defaults to `false` to keep file size small for runs that don’t need transcripts in the artifact. `jsonOptions` The writing options for the final JSON serialization. Defaults to `[.prettyPrinted, .sortedKeys]`. ## Return Value The JSON representation of the evaluation results as `Data`. ## Discussion The data contains sections for summary, results, metadata, and optionally report metadata. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)