export declare type HelmDockerImageDependency = {
    registry?: string;
    repository: string;
    tag: string;
};
/**
 * Type guard to determine whether a given partial Helm values.yaml object potentially
 * defines a Helm Docker dependency.
 *
 * There is no exact standard of how Docker dependencies are defined in Helm
 * values.yaml files (as of January 1st 2020), this function defines a
 * heuristic based on the most commonly used format in the stable Helm charts:
 *
 * image:
 *   repository: 'something'
 *   tag: v1.0.0
 */
export declare function matchesHelmValuesDockerHeuristic(parentKey: string, data: unknown): data is HelmDockerImageDependency;