/**
 * defineMemory — the single factory the consumer uses to register a
 * memory subsystem on an Agent.
 *
 *     defineMemory({ id, type, strategy, store }) → MemoryDefinition
 *
 * The factory's job:
 *   1. Switch on `type` (Episodic / Semantic / Narrative / Causal)
 *      to pick the right family of pipelines.
 *   2. Switch on `strategy.kind` within that family to wire stage
 *      configs (loadCount / topK / threshold / extractor / ...).
 *   3. Return an opaque `MemoryDefinition` that step-4's
 *      `Agent.memory()` builder method consumes.
 *
 * Pattern: Factory + Strategy (GoF). One factory, N strategies, four
 *          types — all reduce to two compiled FlowCharts (`read`,
 *          `write?`) that mount as subflows.
 *
 * Role:    Layer-2 of the memory stack. Sits between the const-objects
 *          contract (Layer 1) and the Agent builder method (Layer 4).
 *
 * Emits:   Indirectly — the compiled subflows emit
 *          `agentfootprint.context.injected` with `source: 'memory'`
 *          when their formatter writes to the messages slot.
 *
 * @see ./define.types.ts        for the const-objects + types
 * @see ./pipeline/*.ts          for the existing pipeline factories this dispatches to
 */
import { type DefineMemoryOptions } from './define.types.js';
import type { MemoryDefinition, ReadonlyMemoryFlowChart } from './define.types.js';
/**
 * Build a `MemoryDefinition` from a high-level `{ type, strategy, store }`
 * config. Internally dispatches to one of the existing pipeline factories
 * (defaultPipeline / semanticPipeline / factPipeline / narrativePipeline /
 * autoPipeline / ephemeralPipeline) and wires the compiled flowcharts
 * into the opaque definition that `Agent.memory()` consumes.
 *
 * Supported combinations:
 *
 * | type      | strategy.kind | underlying pipeline      |
 * | --------- | ------------- | ------------------------ |
 * | EPISODIC  | WINDOW        | defaultPipeline          |
 * | EPISODIC  | BUDGET        | defaultPipeline          |
 * | EPISODIC  | SUMMARIZE     | defaultPipeline + summarize stage |
 * | SEMANTIC  | TOP_K         | semanticPipeline         |
 * | SEMANTIC  | EXTRACT       | factPipeline             |
 * | SEMANTIC  | WINDOW        | factPipeline (recency-load) |
 * | NARRATIVE | EXTRACT       | narrativePipeline        |
 * | NARRATIVE | WINDOW        | narrativePipeline (recency-load) |
 * | (any)     | HYBRID        | autoPipeline (when sub-strategies map cleanly) |
 *
 * Unsupported combinations throw with a remediation hint pointing to a
 * working alternative or to the raw `mountMemoryRead`/`mountMemoryWrite`
 * helpers for power users.
 */
export declare function defineMemory(options: DefineMemoryOptions): MemoryDefinition;
/**
 * Internal — unwrap the brand. Used by `Agent.memory()` (step 4)
 * to mount the pipeline. NOT exported.
 *
 * @internal
 */
export declare function unwrapMemoryFlowChart<T>(branded: ReadonlyMemoryFlowChart<T>): unknown;