/**
 * Detects an arithmetic numeric progression and extrapolates it.
 *
 * Handles positive, negative, decimal, large and constant steps. Extrapolated
 * values are rounded to the maximum decimal precision seen in the source, so
 * `0.1, 0.2, 0.3` continues to `0.4` rather than `0.30000000000000004`.
 *
 * A single numeric cell is intentionally *not* matched here — it falls through
 * to the copy fallback (Excel copies a lone number rather than guessing a step).
 *
 * @packageDocumentation
 */
import type { AutoFillPatternDetector, AutoFillSeries } from './pattern-detector';
import { AutoFillDetectorName } from './pattern-detector';
import type { AutoFillValue, DetectContext } from '../types/autofill.types';
export declare class NumericSequenceDetector implements AutoFillPatternDetector {
    readonly name = AutoFillDetectorName.Numeric;
    detect(source: readonly AutoFillValue[], _ctx: DetectContext): AutoFillSeries | null;
}
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