/**
 * Lab-note vault writer — serializes parsed lab markers to YAML-frontmatter markdown notes.
 *
 * Status classification is deterministic JS: value vs reference range (ADR-3 spirit).
 *
 * PURE file I/O + deterministic helpers only.
 * NO network. NO LLM. NO Date.now(). All timestamps are injected parameters.
 *
 * bober: hand-rolled YAML-frontmatter subset (flat scalars only, no arrays/nested objects).
 *        Mirror of src/vault/frontmatter.ts approach — never import that module.
 *        Swap for a vetted YAML library if quoted strings or nested objects are required.
 */
import type { ParsedLabMarker } from "./lab-types.js";
/** Deterministic lab status — derived in pure JS, never by an LLM (ADR-3 spirit). */
export type LabStatus = "low" | "normal" | "high" | "critical";
/** Report-level metadata supplied alongside a ParsedLabMarker at write time. */
export interface LabNoteMeta {
    panel: string;
    /** ISO 8601 collection timestamp — INJECTED, never Date.now(). */
    collectedAtIso: string;
    source: string;
}
/**
 * Structured contents of a lab note's YAML frontmatter.
 * All 10 keys are always present; ref_low / ref_high are undefined when absent.
 */
export interface LabNoteFrontmatter {
    marker: string;
    value: number;
    unit: string;
    ref_low: number | undefined;
    ref_high: number | undefined;
    /** Human-readable range string, e.g. "70-100", or "" when bounds are absent. */
    ref_range: string;
    /** ISO 8601 collection date (stored verbatim from collectedAtIso). */
    date: string;
    status: LabStatus;
    panel: string;
    source: string;
}
/**
 * Produce a URL-safe slug from an arbitrary string.
 * Precedent: src/incident/timeline.ts:117.
 */
export declare function slugify(s: string): string;
/**
 * Derive a deterministic lab status from value vs reference range.
 * Pure sync — no LLM, no network, no Date.now() (ADR-3 spirit).
 *
 * Priority: critical flag wins; else compare to bounds; missing bounds → "normal".
 */
export declare function deriveLabStatus(value: number, refLow?: number, refHigh?: number, critical?: boolean): LabStatus;
/**
 * Parse the YAML frontmatter from a raw lab-note markdown string.
 * Numeric fields (value, ref_low, ref_high) are coerced from their string representation.
 * ref_low / ref_high are undefined when the value is absent or empty.
 *
 * Throws if the opening or closing `---` fence is missing.
 *
 * Mirror of src/vault/frontmatter.ts:53-135 — DO NOT import that module.
 */
export declare function parseLabNote(raw: string): LabNoteFrontmatter;
/**
 * Write one parsed lab marker to a YAML-frontmatter markdown note.
 *
 * Note path: `<vaultDir>/labs/<panel-slug>/<marker-slug>-<date>.md`
 * The date segment is the YYYY-MM-DD portion of collectedAtIso (colons stripped).
 *
 * Parent directories are created automatically. Returns the absolute path written.
 */
export declare function writeLabNote(vaultDir: string, marker: ParsedLabMarker, meta: LabNoteMeta): Promise<string>;
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