/**
 * Product-line key used for vendor `*-latest-model` choices.
 * Prefer specific lines (flash-lite) over broad ones (flash).
 */
export declare function inferModelFamily(provider: string | undefined, vendorModelId: string): string | undefined;
/** Stable choice key for a product-line latest route. */
export declare function latestModelChoiceKey(modelFamily: string): string;
/** Choice key for a concrete vendor model SKU under a vendor-family profile. */
export declare function concreteModelChoiceKey(vendorModelId: string): string;
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