/**
 * Deletion judgment for the effect planner.
 *
 * `validateDeletion` reproduces the Apps Script `validateDeletion_` full-row
 * deletion guard exactly; the kind predicates classify delete effects and
 * supported effect kinds for the apply-effects request validation.
 */
import type { SyncProjectionEffect } from "../../../../contracts/sheets/syncSheets.js";
import type { PreflightContext } from "./preflightTypes.js";
/** Validates the full-row deletion guard exactly like `validateDeletion_`. */
export declare function validateDeletion(context: PreflightContext, effect: SyncProjectionEffect): string | null;
export declare function isDeletionEffect(effectKind: string): boolean;
export declare function isSyncEffectKind(value: string): boolean;
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