import type { CssStyleCallbackMap, StringMap } from 'roosterjs-editor-types';
/**
 * @internal
 */
export declare function getTagReplacement(additionalReplacements: Record<string, string | null> | undefined): Record<string, string | null>;
/**
 * @internal
 */
export declare function getAllowedAttributes(additionalAttributes: string[] | undefined): string[];
/**
 * @internal
 */
export declare function getAllowedCssClassesRegex(additionalCssClasses: string[] | undefined): RegExp | null;
/**
 * @internal
 */
export declare function getDefaultStyleValues(additionalDefaultStyles: StringMap | undefined): StringMap;
/**
 * @internal
 */
export declare function getStyleCallbacks(callbacks: CssStyleCallbackMap | null | undefined): CssStyleCallbackMap;