export interface HistogramBucket{label:string;count:number;}
/** Converts an untyped bucket count to a bounded, non-negative integer. */
export declare function normalizeHistogramBinCount(binCount:unknown):number;
/** Splits `values` into `binCount` equal-width buckets and counts membership.
*  Non-finite `binCount` (or <= 0) yields no buckets; a fractional `binCount`
*  is floored and an excessive count is capped; non-finite samples in
*  `values` are dropped rather than corrupting bucket-index math. Pass a BCP 47
*  `locale` to localize the generated range labels -- an omitted value (or `'auto'`) resolves to
*  the page's active `setLyraLocale()` locale the same way `utilities/format.ts`'s helpers do
*  (see `resolveActiveOrExplicitLocale()`), falling back to `'en'` only once none has been set;
*  an explicit tag always stays authoritative. `<lr-histogram>` itself is unaffected -- it always
*  passes its own resolved `effectiveLocale` here. */
export declare function binValues(values:readonly number[],binCount:number,locale?:string):HistogramBucket[];