import type { Step } from '@atlaskit/editor-prosemirror/transform-override';
export type SanitizedStep = {
    attr?: string;
    markType?: string;
    stepType: string;
};
/**
 * Sanitizes a given ProseMirror step by extracting its type and non-UCG relevant attributes.
 *
 * @param {Step} step - The ProseMirror step to be sanitized.
 * @returns {SanitizedStep} - The sanitized step with only necessary information.
 *
 * @example
 * ```
 * const step = new AttrStep(10, 'colwidth', [123, 451] );
 * const sanitized = sanitizeStep(step);
 *
 * // Output: { stepType: 'attr', attr: 'example' }
 * ```
 */
export declare const sanitizeStep: (step: Step) => SanitizedStep;
/**
 * Groups sanitized steps by their type and counts their occurrences.
 *
 * @param {SanitizedStep[]} sanitizedSteps - An array of sanitized steps.
 * @returns {Record<string, number>} - An object where keys are step types and values are their counts.
 *
 * @example
 * ```
 * const input = [
 *   { stepType: 'attr', attr: 'colwidth' },
 *   { stepType: 'mark', markType: 'bold' },
 *   { stepType: 'attr', attr: 'colwidth' }
 * ];
 *
 * const grouped = groupSteps(input);
 * // Output: { 'attr_example': 2, 'mark_bold': 1 }
 * ```
 */
export declare const groupSteps: (sanitizedSteps: SanitizedStep[]) => Record<string, number>;