import type { DesignTokens } from '../../../core/types.js';
/**
 * Determines whether a value is a record of theme names mapping to design tokens.
 *
 * A valid theme record:
 * - Is a record with at least one non-metadata key (keys not starting with `$`).
 * - For a single theme, it must contain at least one nested theme object (not
 *   just design tokens).
 * - For multiple themes, either each theme must expose DTIF metadata or they
 *   must share at least one common token key.
 *
 * @param val - The value to test.
 * @returns `true` if the value is a theme record, `false` otherwise.
 *
 * @example
 * isThemeRecord({ light: { color: { red: { $value: '#f00' } } } }); // => true
 */
export declare const isThemeRecord: (val: unknown) => val is Record<string, DesignTokens>;
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