import type { BatchInput, BatchResult } from './types.js';
/**
 * Calculate batch scaling for recipe ingredients.
 *
 * Scales all ingredients proportionally based on the ratio between
 * target batch size and original batch size.
 *
 * @param input - Batch scaling input with original size, target size, and ingredients
 * @returns Batch result with scale factor and scaled ingredients
 */
export declare function batch(input: BatchInput): BatchResult;
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