/**
 * @module @nhtio/adk/batteries/vector/vespa
 *
 * Vespa vector-store adapter. A logical collection maps to a document-type in a deployed
 * application package; the adapter maintains the application-package STATE in memory (the set of
 * live collections + their dims/metric) and redeploys the whole package on each schema change
 * via the config server (dependency-free store-zip). Feed/get/delete/search are performed over
 * the document + search HTTP APIs; scores are recomputed locally (cosineSim/dotProd/euclideanDist)
 * to guarantee the [0,1] contract regardless of backend metric quirks. Metadata is a JSON string
 * field filtered with the neutral filter tree's JS reference evaluator for cross-adapter parity.
 *
 * Vespa has NO runtime "create collection". A collection = a document-type declared in a .sd schema
 * file inside a deployed application package. The adapter maintains the application-package STATE
 * in memory and redeploys the whole package on each schema change via the config server.
 */
import { BaseVectorStore } from "../contract";
import type { SearchPlan, UpsertPlan, DeletePlan, CollectionSpec } from "../plan";
import type { VectorMatch, VectorStoreCapabilities, BaseVectorStoreOptions } from "../types";
export interface VespaVectorStoreOptions extends BaseVectorStoreOptions {
    /** Connection and authentication parameters for the backend. */
    connection?: {
        endpoint?: string;
        configUrl?: string;
    };
}
export declare class VespaVectorStore 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>;
}