/**
 * Helpers for managed-region marker extension identifiers.
 *
 * @experimental This API is unstable and may change without notice.
 */
import type { ExtensionName, ExtensionType } from "./common.js";
import type { Handle } from "./handle.js";
export type MarkerFqnRef = {
    readonly refType: "registry" | "workspace";
    readonly owner: Handle;
} | {
    readonly refType: "git-hosted" | "local";
};
export declare const markerFqnForRef: (args: {
    readonly ref: MarkerFqnRef;
    readonly manifest: {
        readonly owner: Handle;
        readonly name: ExtensionName;
    };
    readonly type: ExtensionType;
    readonly name: ExtensionName;
}) => string;
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