/**
 * Classification of how a `Context` field behaves on `Context.resetRuntimeState()`.
 *
 * Every field on Context that holds mutable collection state (Array/Map/Set) MUST carry a
 * classification via the {@link resettable} decorator — this is enforced by a test
 * (tests/context/test context reset classification.ts), so adding a new runtime-state field
 * without deciding its reset behavior fails CI instead of silently leaking.
 */
export type ContextResetBehavior = 
/** Collections are emptied in place: arrays → length 0, Map/Set → clear(),
 * plain container objects (e.g. the coroutines map) → each array entry emptied */
"empty"
/** Field is set to null */
 | "null"
/** Field is set to undefined */
 | "undefined"
/** Deliberately NOT reset — document why at the field declaration */
 | "keep"
/** Reset by explicit code (e.g. Context.resetSubsystems) — the decorator only records
 * that the decision was made consciously */
 | "custom";
/**
 * @internal Classifies how a `Context` field behaves on `Context.resetRuntimeState()`.
 * Fields marked `"empty"`/`"null"`/`"undefined"` are reset automatically by
 * {@link applyContextReset}; `"keep"` and `"custom"` only record the decision.
 */
export declare function resettable(behavior?: ContextResetBehavior): PropertyDecorator;
/** @internal Returns the reset classifications declared via {@link resettable} for an instance's class. */
export declare function getContextResetBehaviors(instance: object): ReadonlyMap<string | symbol, ContextResetBehavior> | undefined;
/** @internal Applies all automatic reset behaviors ("empty"/"null"/"undefined") declared via {@link resettable}. */
export declare function applyContextReset(instance: object): void;