import * as protoLoader from '@grpc/proto-loader';
import type { PackageDefinition, Options } from '@grpc/proto-loader';
/** Loader options for message-format fidelity; shared by all callers. */
export declare const PROTO_LOADER_OPTIONS: Options;
/** Absolute path to the shipped `proto/zrt_runtime.proto`. */
export declare const PROTO_PATH: string;
/** The `agent_runtime.v1` namespace, keyed by short message/enum/service name. */
export type AgentRuntimeNamespace = Record<string, protoLoader.AnyDefinition>;
/** Result of {@link loadProto}: full package definition plus the `agent_runtime.v1` namespace. */
export interface LoadedProto {
    packageDefinition: PackageDefinition;
    namespace: AgentRuntimeNamespace;
}
/** Load `proto/zrt_runtime.proto` and extract the `agent_runtime.v1` namespace (fresh each call; cache via {@link getLoadedProto}). */
export declare function loadProto(): LoadedProto;
/** Cached singleton accessor; parsed once per process. */
export declare function getLoadedProto(): LoadedProto;
/** @internal Cached package definition. */
export declare function getPackageDefinition(): PackageDefinition;
/** @internal Cached `agent_runtime.v1` namespace. */
export declare function getAgentRuntimeNamespace(): AgentRuntimeNamespace;