export declare function normalizeKey(value: string): string;
/**
 * Profile and choice keys treat `-` and `_` as equivalent (canonical: `_`).
 */
export declare function normalizeSegmentKey(value: string): string;
/** Resolve an input segment to the registry's canonical object key, if any. */
export declare function resolveSegmentKey(keys: Iterable<string>, input: string): string | undefined;
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