/**
 * A symbol used to mark properties that should be ignored during cloning operations.
 */
export declare const ignoreCloneSymbol: unique symbol;
/**
 * A decorator function that marks a property of a class to be ignored during cloning.
 *
 * @param target - The target object (class prototype) where the property resides.
 * @param propertyKey - The key of the property to be ignored during cloning.
 */
export declare function BrainIgnoreClone(target: any, propertyKey: any): void;