import type { Field } from "../../describe/types.ts";
import { type MaskSelection, type MaskStrategy, type Masker } from "./types.ts";
/** A strategy that maps directly to a preset (everything except "auto"). */
type ConcreteStrategy = Exclude<MaskStrategy, "auto">;
/**
 * Pick a concrete preset for a field from its Salesforce type and name/label.
 * Pure. Consulted only when a field's selection strategy is "auto" (the
 * default the detector hands us); an explicit strategy bypasses it.
 */
export declare function pickStrategy(field: Field): ConcreteStrategy;
/**
 * Build a Masker over an explicit selection (object → field → strategy).
 * Fields not in the map are never masked.
 *
 * Fail-closed (spec §3.5): anything the masker cannot safely produce a value
 * for returns OMIT_ROW — never the clear value. The caller treats OMIT_ROW
 * like an unresolved required FK (skip + log the row).
 */
export declare function createMasker(opts: {
    salt: string;
    selection: MaskSelection;
}): Masker;
export {};