import { HsonNode } from "../../../../core/types.js";
/**
 * Build a DOM-ready attribute map for an `HsonNode`.
 *
 * This is the “wire format” step: it flattens a node’s internal `$_attrs` plus
 * selected `$_meta` keys into a plain `{ [name]: string }` dictionary suitable
 * for `Element.setAttribute(...)` / element construction.
 *
 * Rules:
 * - User attributes (`n.$_attrs`) are copied as string values.
 *   - Special-case: `"style"`
 *     - If `style` is an object (your `StyleObject` shape), it is serialized to
 *       CSS text via `serialize_style(...)`.
 *     - If `style` is already a string, it is passed through unchanged.
 * - Exact registered metadata is projected through its owned markup spelling.
 *
 * Notes / invariants:
 * - This function does not validate attribute names or escape values; it assumes
 *   earlier stages enforced the “safe” boundary (or you are building trusted DOM).
 * - Unknown or misplaced metadata rejects instead of leaking or being dropped.
 *
 * @param n - Source Hson node whose `$_attrs` and `$_meta` will be projected onto
 *            a DOM attribute dictionary.
 * @returns A string-valued attribute record representing the node’s wire attrs.
 */
export declare function build_wire_attrs(n: HsonNode): Record<string, string>;
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