/**
 * MT-side mapper registry for `useAnimatedStyle`.
 *
 * Maps a `SharedValue`'s current scalar to a partial style object that the
 * binding flush passes to `setStyleProperties` on the bound element. Keyed by
 * a string name (`'translateX'`, `'scale'`, ...) so the SWC worklet transform
 * can capture the selection trivially: a string is a primitive `_c` value
 * with no special lifting required (unlike arbitrary functions, which can't
 * be captured into a worklet's closure).
 *
 * Custom mappers can be registered via `registerMapper(name, fn)` from MT
 * code (e.g. a `'main thread'`-marked module body in a user app). BG-side
 * `useAnimatedStyle` validates the name only against the type union; a
 * lookup mismatch on MT is a silent no-op at flush time.
 *
 * Param shapes are mapper-specific. The `MapperParams` type in
 * `@sigx/lynx-runtime-internal` is the single source of truth — both
 * BG-side `useAnimatedStyle` and the MT runtime import it from there.
 *
 * Range mapping: `translateX` / `translateY` / `scale` / `opacity` accept
 * either their linear `factor`/`offset` shape or a `RangeParams` shape
 * (`{ inputRange, outputRange, extrapolate? }`). The mapper picks the branch
 * by looking for `inputRange` on the params.
 */
import type { AnimatedStyleMapper } from '@sigx/lynx-runtime-internal';
export type { MapperParams, BuiltinMapperName, AnimatedStyleMapper, RangeParams, } from '@sigx/lynx-runtime-internal';
/**
 * Look up a registered mapper by name. Returns `undefined` if the name
 * isn't registered — the binding flush treats that as a no-op.
 */
export declare function lookupMapper(name: string): AnimatedStyleMapper | undefined;
/**
 * Register a custom MT-side mapper. Idempotent on (name, fn) — last
 * registration wins for the same name. Intended for `'main thread'`-marked
 * user modules that ship project-specific styling math.
 */
export declare function registerMapper(name: string, mapper: AnimatedStyleMapper): void;
export declare function resetMappers(): void;