> For clean Markdown content of this page, append .md to this URL. For the complete documentation index, see https://buildwithfern.com/learn/llms.txt. ## 0.34.2 **`(fix):`** Emit wire-test response bodies as Swift raw multi-line string literals (`#"""..."""#`) so that JSON escape sequences such as `\n` survive verbatim into the runtime `String` and reach `JSONDecoder` as valid JSON. The previous regular triple-quoted literal caused Swift to unescape `\n` into real newline characters at runtime, which produced invalid JSON (RFC 8259 disallows raw control characters inside JSON string values) and made `JSONDecoder` reject the body with `dataCorrupted("The given data was not valid JSON.")`.