export declare const DOCUMENT_LEGACY_TEXT_OUTLINE_ATTRIBUTE = "data-office-legacy-text-outline";
export declare const DOCUMENT_LEGACY_TEXT_SHADOW_ATTRIBUTE = "data-office-legacy-text-shadow";
export declare const DOCUMENT_LEGACY_TEXT_EMBOSS_ATTRIBUTE = "data-office-legacy-text-emboss";
export declare const DOCUMENT_LEGACY_TEXT_IMPRINT_ATTRIBUTE = "data-office-legacy-text-imprint";
export declare const DOCUMENT_LEGACY_TEXT_EFFECT_NAMES: readonly ["outline", "shadow", "emboss", "imprint"];
export type WorkDocumentLegacyTextEffectName = (typeof DOCUMENT_LEGACY_TEXT_EFFECT_NAMES)[number];
export interface WorkDocumentLegacyTextEffects {
    outline?: boolean;
    shadow?: boolean;
    emboss?: boolean;
    imprint?: boolean;
}
export interface WorkDocumentLegacyTextEffectCss {
    WebkitTextFillColor?: string;
    WebkitTextStroke?: string;
    paintOrder?: string;
    textShadow?: string;
}
export declare function normalizeDocumentLegacyTextEffect(value: unknown): boolean | null;
export declare function normalizeDocumentLegacyTextEffects(value: unknown): WorkDocumentLegacyTextEffects | null;
export declare function documentLegacyTextEffectsConflict(effects: WorkDocumentLegacyTextEffects): boolean;
export declare function documentLegacyTextEffectFromElement(element: HTMLElement, effect: WorkDocumentLegacyTextEffectName): boolean | null;
export declare function documentLegacyTextEffectsFromElement(element: HTMLElement): WorkDocumentLegacyTextEffects | null;
export declare function documentLegacyTextEffectsFromTextStyleAttributes(attributes: Record<string, unknown>): WorkDocumentLegacyTextEffects | null;
export declare function documentLegacyTextEffectsDomAttributes(value: WorkDocumentLegacyTextEffects): Record<string, string>;
export declare function documentLegacyTextEffectsCss(value: WorkDocumentLegacyTextEffects): WorkDocumentLegacyTextEffectCss;
export declare function documentLegacyTextStyleAttributeName(effect: WorkDocumentLegacyTextEffectName): string;