/**
 * Reading a JSON value out of model text.
 *
 * A provider that enforces a JSON schema returns JSON and nothing else. Every
 * other path — Ollama Cloud, any local model asked for JSON in the prompt —
 * returns whatever the model felt like emitting: a fenced block, a sentence of
 * preamble, or both. Discarding a correct answer over its wrapping is a defect,
 * so extraction lives here once and is shared by every consumer rather than
 * being re-invented per call site.
 *
 * Extraction only ever *narrows* text to a span that already parses as JSON. It
 * never repairs, completes, or rewrites a value, so nothing here can invent a
 * field the model did not send.
 */
/**
 * Parse `text` as JSON, tolerating fences and surrounding prose. Returns
 * `undefined` when no candidate span parses — the caller decides what a missing
 * value means.
 */
export declare function parseJsonFromModelText(text: string): unknown | undefined;
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