/**
 * Atlassian Document Format -> plain text.
 *
 * ADF raw JSON is mostly structural tokens the agent has to pay for and then
 * ignore. Normalizing to text is the single biggest payload win in JAM, so
 * nothing downstream of the adapter ever sees an ADF node.
 *
 * Unknown node types are surfaced as `[unsupported: <type>]` rather than
 * dropped - a silently missing paragraph is exactly the failure mode the
 * completeness rules exist to prevent.
 */
export declare function adfToText(doc: unknown): string;