export type YamlModel = Record<string, unknown>;
/** Formatting of the source document, so a rewrite does not reflow it. */
export interface DocumentFormatting {
    indent: number;
    indentSeq: boolean;
}
/**
 * Apply `model` to `source`, returning the new document text.
 *
 * Guarantees:
 * - an unchanged model returns `source` byte for byte;
 * - regions outside a change keep their bytes whenever the change is spliceable;
 * - the result parses back to exactly `model`, verified before returning, so a
 *   planning bug can never silently write something else to disk.
 */
export declare function renderModelOntoSource(source: string, model: YamlModel): string;
/**
 * Replace every `defaults.env` / `roles.*.env` value — and every `vars:` entry
 * those values interpolate — with `marker`.
 *
 * Splices the scalars out of the original bytes rather than re-rendering, so the
 * only difference from `source` is the secrets themselves. Redaction must not be
 * able to introduce (or conceal) a formatting change in a review diff.
 */
export declare function redactSourceSecrets(source: string, marker: string): string;
/**
 * Best-effort detection of the document's block indentation, used only when a
 * change is not spliceable and the document has to be re-rendered. Detection
 * failure falls back to the library defaults; correctness never depends on it.
 */
export declare function detectFormatting(source: string): DocumentFormatting;