import type { ElementalNode } from "../../types/elemental.types";
/**
 * Extracts all variable names used in the content in the format {{variableName}}
 * Supports nested dot notation like {{user.profile.name}}
 *
 * Extracts variables from:
 * - Text content (content properties)
 * - Element attributes (href, src, alt_text, etc.)
 * - Channel raw properties (subject, title, text)
 * - Conditional logic (if, loop properties)
 * - Localized content and attributes
 */
export declare const extractVariablesFromContent: (elements?: ElementalNode[]) => string[];