/**
 * Field Hook Execution
 *
 * Runs field-level beforeValidate and beforeChange hooks during create/update operations.
 * Mutates the data object in-place, mirroring the password-hashing pattern already used
 * by create.ts and update.ts.
 */
import type { RevealCollectionConfig, RevealDocument, RevealRequest } from '../../types/index.js';
/**
 * Executes all hooks of `hookType` for every field in the collection that has them.
 *
 * Runs sequentially: each hook in a field's array receives the value returned by the
 * previous hook, so hooks compose (later hooks see the output of earlier ones).
 *
 * Called twice per write operation:
 *   1. `beforeValidate`  -  before required-field checks, so hooks can generate values
 *      (e.g. slug auto-generation from title) that satisfy required constraints.
 *   2. `beforeChange`    -  after validation, before the DB write.
 */
export declare function runBeforeFieldHooks(config: RevealCollectionConfig, data: Record<string, unknown>, operation: 'create' | 'update', hookType: 'beforeValidate' | 'beforeChange', originalDoc?: RevealDocument, req?: RevealRequest): Promise<void>;
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