/**
 * Ledger codec — pure parse/serialize functions, zero I/O.
 *
 * Extracted from principle-tree-ledger.ts (PRI-443) to separate pure logic
 * from filesystem operations. This module has zero fs/path imports.
 */
import type { LegacyPrincipleTrainingStore, LedgerPrinciple, LedgerRule, Implementation, PrincipleValueMetrics, LedgerTreeStore, HybridLedgerStore } from '../types/ledger-store.js';
export declare function isRecord(value: unknown): value is Record<string, unknown>;
export declare function stringArray(value: unknown): string[];
export declare function clampFloat(value: unknown, opts: {
    min: number;
    max: number;
    fallback: number;
}): number;
export declare function clampInt(value: unknown, opts: {
    min: number;
    max: number;
    fallback: number;
}): number;
export declare function uniqueStrings(values: string[]): string[];
export declare function parseLegacyTrainingStore(raw: unknown): LegacyPrincipleTrainingStore;
export declare function parsePrinciples(raw: unknown): Record<string, LedgerPrinciple>;
export declare function parseRules(raw: unknown): Record<string, LedgerRule>;
export declare function parseImplementations(raw: unknown): Record<string, Implementation>;
export declare function parseMetrics(raw: unknown): Record<string, PrincipleValueMetrics>;
export declare function createEmptyTree(): LedgerTreeStore;
export declare function parseTree(raw: unknown): LedgerTreeStore;
export declare function parseHybridLedger(raw: unknown): HybridLedgerStore;
export declare function serializeLedger(store: HybridLedgerStore): string;
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