import type { DualDocument, GetOptions, DocumentQuery, DbOperation } from './types.ts';
/**
 * Gets a document by path or id
 *
 * This function retrieves a document through the routing system:
 * - Finds the document by path (follows redirects) or by id
 * - Determines if this is a direct access or redirect (for path queries)
 * - Returns the appropriate version (draft or current) based on options
 *
 * Redirect Detection:
 * - Direct access: route.id === document.path_id (accessing via canonical path)
 * - Redirect: route.id !== document.path_id (accessing via old/alternate path)
 * - ID access: always returns redirect: false
 *
 * Query Filtering:
 * - published: true - only return published documents
 * - published: false - only return unpublished documents
 * - published: undefined - return both published and unpublished documents (no filter)
 * - draft: true - include draft version in response (if exists)
 * - draft: false or undefined - exclude draft version from response
 *
 * @param client Database client
 * @param query Document query (supports path string, id number, DualDocument, Route, etc.)
 * @param options Get options (draft, published)
 * @returns DualDocument with current/draft versions and redirect flag, or null if not found
 */
export declare const getDualDocument: DbOperation<[DocumentQuery, GetOptions?], DualDocument | null>;
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