import { CantonError } from "../../core/errors/canton-error.js";
import { DamlLfPackageLoader } from "../../daml-lf/daml-lf-package-loader.js";
import { type GetPackageResponse, type ListPackagesResponse } from "../../transports/grpc/generated/canton/com/daml/ledger/api/v2/package_service.js";
export interface GrpcPackageService {
    listPackagesAsync(request: {}): Promise<ListPackagesResponse>;
    getPackageAsync(request: {
        packageId: string;
    }): Promise<GetPackageResponse>;
}
export interface GrpcPackageChoiceMetadata {
    readonly choice: string;
    readonly consuming: boolean;
    readonly aliases: readonly string[];
    readonly choiceFqn: string;
}
export interface GrpcPackageTemplateMetadata {
    readonly moduleName: string;
    readonly entityName: string;
    readonly payloadType: "template" | "interface";
    readonly aliases: readonly string[];
    readonly templateFqn: string;
    readonly choices: readonly GrpcPackageChoiceMetadata[];
}
export interface GrpcPackageMetadata {
    readonly id: string;
    readonly name: string;
    readonly version: string;
    readonly templates: readonly GrpcPackageTemplateMetadata[];
}
/** An explicit package-service/LF decoding failure; callers never receive partial package rows. */
export declare class GrpcPackageRelationError extends CantonError {
    readonly packageId: string;
    constructor(packageId: string, message: string);
}
/** Loads LF package metadata. Each call owns its promise map, so no package data enters QueryCacheStore. */
export declare class GrpcPackageRelationReader {
    private readonly packageService;
    private readonly packageLoader;
    /** Package IDs are content-addressed SHA-256 digests (verified below), so a resolved entry is cached forever. */
    private readonly resolved;
    constructor(packageService: GrpcPackageService, packageLoader?: DamlLfPackageLoader);
    readAllAsync(): Promise<readonly GrpcPackageMetadata[]>;
    readPackagesAsync(packageIds: readonly string[]): Promise<readonly GrpcPackageMetadata[]>;
    private readPackageAsync;
}