/**
 * The `@track` decorator function marks field values as reactive in
 * LWC Components. This function can also be invoked directly
 * with any value to obtain the trackable version of the value.
 */
export default function track(target: undefined, context: ClassFieldDecoratorContext): void;
export default function track<T>(target: T, context?: never): T;
export declare function internalTrackDecorator(key: string): PropertyDescriptor;
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