export declare const isAttrTrue: (attrValue: string | null) => boolean;
export declare const getBooleanAttribute: ($element: Element, attrName: string) => boolean;
export declare const updateBooleanAttribute: ($element: Element, attrName: string, attrValue: boolean | null | undefined) => void;
export declare const updateAttribute: ($element: Element, attrName: string, attrValue: string | number | boolean | null | undefined) => void;
export declare const isLiteralValue: <T extends readonly string[]>(literals: T, value: string | null | undefined) => value is T[number];
export declare const updateLiteralAttribute: <T extends readonly string[]>($element: Element, literals: T, attrName: string, attrValue: string | null | undefined) => void;
export declare function getLiteralAttribute<T extends readonly string[]>($element: Element, literals: T, attrName: string): T[number];
export declare function getLiteralAttribute<T extends readonly string[]>($element: Element, literals: T, attrName: string, defaultValue: null): T[number] | null;
export declare function getLiteralAttribute<T extends readonly string[]>($element: Element, literals: T, attrName: string, defaultValue: T[number]): T[number];
type IntegerOptions = {
    min?: number;
    max?: number;
    defaultValue?: number | null;
    itemSizeMultiplier?: number;
    itemSpaceBetween?: number;
};
export declare const attrValueToInteger: (value: string | null, options?: IntegerOptions) => number | null;
export declare const attrValueToPixels: (value: string | null, options?: IntegerOptions) => string;
export declare const updateIntegerAttribute: ($element: Element, attrName: string, attrValue: string | number | null | undefined, options?: IntegerOptions) => void;
export declare function getIntegerAttribute($element: Element, attrName: string): number | undefined;
export declare function getIntegerAttribute($element: Element, attrName: string, defaultValue: null): number | null;
export declare function getIntegerAttribute($element: Element, attrName: string, defaultValue: number): number;
export {};