import { StandardSchema } from '../../../types/schema.js';
/**
 * Determines if a field is required based on its path in a schema
 * @param schema - The schema adapter object
 * @param fieldPath - The path to the field (e.g., "preferences.marketing")
 * @returns true if the field is required, false if optional or not found
 */
export declare function isFieldRequired(schema: StandardSchema | null | undefined, fieldPath: string): boolean;