/**
 * Projection provisioning for the Google Sheets API sync provider.
 *
 * Creates missing tabs and their header rows, or verifies existing tabs, in
 * ONE atomic batchUpdate. An existing tab with no content anywhere in its
 * used grid gets its headers initialized; an existing tab with content must
 * match the registered headers exactly (order, duplicates, width), otherwise
 * provisioning fails closed BEFORE any mutation. The operation is idempotent:
 * a retry after a lost response re-enumerates, sees the exact headers, and
 * succeeds without rewriting anything.
 */
import type { SyncSheetsProvisionRoute } from "../../../../contracts/sheets/sheetsProvisioning.js";
import { type GoogleSheetsApiProviderDeps } from "./shared.js";
/**
 * Creates missing tabs and their header rows, or verifies existing tabs,
 * in ONE atomic batchUpdate. An existing tab with no content anywhere in
 * its used grid gets its headers initialized; an existing tab with content
 * must match the registered headers exactly (order, duplicates, width;
 * user_input tabs additionally require the `__hikoutei_row_id` system
 * column as the last header), otherwise provisioning fails closed BEFORE
 * any mutation. The operation is idempotent: a retry after a lost response
 * re-enumerates, sees the exact headers, and succeeds without rewriting
 * anything.
 */
export declare function provisionRegistry(deps: GoogleSheetsApiProviderDeps, registrations: readonly SyncSheetsProvisionRoute[]): Promise<{
    readonly registrations: readonly Omit<SyncSheetsProvisionRoute, "headers">[];
    readonly createdSheets: readonly string[];
    readonly initializedHeaders: readonly string[];
}>;
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