org.llm4s.eval.dataset.JsonlCodec
Codec for reading and writing Example values as JSONL (newline-delimited JSON).
Each line produced by encode is a compact, single-line JSON object. decode is the inverse: it parses one such line back into an Example , returning None for any malformed or structurally invalid input without throwing.
Intended for batch import/export via DatasetStore.importJsonl and DatasetStore.exportJsonl .
Attributes
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Supertypes
class Object
trait Matchable
class Any
Self type
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Attempts to parse a single JSONL line into an Example .
Attempts to parse a single JSONL line into an Example .
Returns None if:
line is not valid JSONthe top-level value is not a JSON object
the required id or input fields are absent or have the wrong type
Optional-field behaviour:
referenceOutput: JSON null → None; any other value → Some(value)tags: absent or non-array → empty Setmetadata: absent or non-object → empty Map; non-string values coerced to ""
Never throws; all parse errors are caught and collapsed to None.
Attributes
Serialises an Example to a compact, single-line JSON string.
Serialises an Example to a compact, single-line JSON string.
Field mapping:
id — the ExampleId value as a stringinput — the input ujson.Value verbatimreferenceOutput — the output ujson.Value, or JSON null when Nonetags — JSON array of tag stringsmetadata — JSON object with string values
The result never contains newline characters and is safe to use as a single JSONL record.
Attributes