import { ResolvedInlineBoxStyle } from './index.js';
export type InlineBoxLogicalSides = number | {
    start: number;
    end: number;
};
export type ResolvedInlineBoxLogicalSides = {
    start: number;
    end: number;
};
/** True for finite, non-negative integer CSS pixel values. */
export declare const isFiniteNonNegativeInteger: (value: unknown) => value is number;
/**
 * Expands a scalar logical value into explicit start/end values.
 *
 * Undefined resolves to zero. Invalid or non-integer input fails closed.
 */
export declare const normalizeInlineBoxLogicalSides: (value: InlineBoxLogicalSides | undefined) => ResolvedInlineBoxLogicalSides | null;
/** Stable signature for every metric and appearance value consumed by paint. */
export declare const inlineBoxStyleSignature: (style: ResolvedInlineBoxStyle) => string;