import type { HeldImage } from "./placement";
import type { NodeInventory } from "./types";
/** The G1 calls AutoManager makes. @public */
export interface WarmNodeTransport {
    /** Ask the node's worker to pull these image refs now. */
    prefetchImages(nodeId: string, refs: string[]): Promise<void>;
    /** Override how long this node lingers idle before the daemon expires
     *  it. `0` means "use the global `emptyNodeLinger`". */
    setNodeIdleExpiry(nodeId: string, ms: number): Promise<void>;
    /** Merge these tags onto the node's metadata; the daemon persists them. */
    setNodeTags(nodeId: string, tags: Record<string, string>): Promise<void>;
    /** The images this node advertises holding. */
    heldImages(nodeId: string, inv: NodeInventory | undefined): HeldImage[];
}
/**
 * Read the advertised image set off a node inventory, in the shape
 * `warmth` scores against: the digest out of `image_ref`
 * (`repository@sha256:<hex>`) plus the `repository:tag` names the node
 * currently answers to for it.
 *
 * Written defensively (the field is optional and an older worker sends
 * nothing) so a node that advertises no images scores cold rather than
 * throwing.
 *
 * @public
 */
export declare function inventoryImageDigests(inv: unknown): HeldImage[];
/**
 * Split an image string into the two things warmth can match on. A ref may
 * carry either or both: `repo:tag`, `repo@sha256:...`, or
 * `repo:tag@sha256:...`.
 *
 * @public
 */
export declare function parseImageString(ref: string): HeldImage & {
    repoTag?: string;
};
/** The image set a template needs, as `ImageRef`s placement can score. @public */
export declare function imageRefsFrom(refs: string[]): {
    repoTag?: string;
    digest?: string;
}[];
/**
 * Bind the transport to a Manager client. Duck-typed: when the generated
 * RPC exists it is used, otherwise the call is reported through
 * `onUnsupported` and does nothing.
 *
 * @public
 */
export declare function warmNodeTransport(norsk: unknown, onUnsupported: (what: string, detail: Record<string, unknown>) => void, override?: Partial<WarmNodeTransport>): WarmNodeTransport;
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