/**
 * @module @nhtio/adk/batteries/vector/meilisearch
 *
 * Meilisearch adapter. Each collection is a Meilisearch index with a `userProvided` embedder
 * (BYO vectors under `_vectors.<embedder>`); KNN uses semantic search (`vector` +
 * `hybrid.semanticRatio = 1`). Metadata is stored as a JSON string field and filtered with the
 * neutral filter tree's JS reference evaluator for exact cross-adapter parity. Meilisearch
 * returns `_rankingScore` already normalized to [0,1] (higher = closer).
 *
 * Requires the `vectorStore` experimental feature, which the adapter enables on connect.
 * Driver: `meilisearch` (pure JS).
 */
import { BaseVectorStore } from "../contract";
import type { SearchPlan, UpsertPlan, DeletePlan, CollectionSpec } from "../plan";
import type { VectorMatch, VectorStoreCapabilities, BaseVectorStoreOptions } from "../types";
export interface MeilisearchVectorStoreOptions extends BaseVectorStoreOptions {
    /** Connection and authentication parameters for the backend. */
    connection?: {
        host?: string;
        apiKey?: string;
    };
}
export declare class MeilisearchVectorStore extends BaseVectorStore {
    #private;
    readonly capabilities: VectorStoreCapabilities;
    /** Static availability probe: whether this adapter's runtime driver can load in the current environment. */
    static isAvailable(): boolean;
    isAvailable(): boolean;
    connect(): Promise<void>;
    close(): Promise<void>;
    createCollection(spec: CollectionSpec, ifNotExists: boolean): Promise<void>;
    dropCollection(collection: string, ifExists: boolean): Promise<void>;
    hasCollection(collection: string): Promise<boolean>;
    renameCollection(_from: string, _to: string): Promise<void>;
    executeUpsert(plan: UpsertPlan): Promise<void>;
    executeSearch(plan: SearchPlan): Promise<VectorMatch[]>;
    executeDelete(plan: DeletePlan): Promise<void>;
}