/**
 * @module @nhtio/adk/batteries/vector/cloudflare
 *
 * Managed Cloudflare Vectorize V2 vector-store adapter over REST (pure fetch, no driver).
 * A logical collection maps to a Vectorize **index**. Supported dimensions: 32–1536.
 *
 * Upserter: POST /{name}/upsert via `multipart/form-data` with field name `vectors`
 * (content-type `application/x-ndjson`). Each line: `{"id":"..","values":[..],"metadata":{..}}`.
 * Query/get/delete use JSON bodies. Eventual consistency is handled by settle-polling.
 *
 * Native filtering: Vectorize requires pre-created metadata indexes and lacks `$and`/`$or`.
 * For guaranteed cross-adapter parity, **over-fetch + JS evaluateFilter** (topK cap 100).
 *
 * Scores: returned as-is from Vectorize, then re-computed locally (cosineSim/dotProd/euclideanDist)
 * to guarantee the [0,1] contract.
 *
 * Document: stored under the reserved metadata key `__document`; extracted on read.
 */
import { BaseVectorStore } from "../contract";
import type { SearchPlan, UpsertPlan, DeletePlan, CollectionSpec } from "../plan";
import type { VectorMatch, VectorStoreCapabilities, BaseVectorStoreOptions } from "../types";
export interface CloudflareVectorizeVectorStoreOptions extends BaseVectorStoreOptions {
    /** Connection and authentication parameters for the backend. */
    connection: {
        accountId: string;
        apiKey: string;
        indexNamePrefix?: string;
    };
}
export declare class CloudflareVectorizeVectorStore 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>;
}