import { type StateFileSystem } from "./fs.js";
export type TemplateBackend = "docker";
export interface TemplateEntry {
    hash: string;
    template_id?: string;
    image?: string;
    runtime_type: string;
    dockerfile_path: string;
    built_at: string;
}
export interface TemplateRegistry {
    get(backend: TemplateBackend, hash: string): Promise<TemplateEntry | null>;
    put(backend: TemplateBackend, entry: TemplateEntry): Promise<void>;
    remove(backend: TemplateBackend, hash: string): Promise<void>;
    list(backend?: TemplateBackend): Promise<TemplateEntry[]>;
}
export declare function createTemplateRegistry(homeDir: string, fs?: StateFileSystem): TemplateRegistry;
export type { StateFileSystem } from "./fs.js";