export type CallbackFn<T> = (object: T) => void;
export declare class JSONStream {
    private objectCallbacks;
    private arrayCallbacks;
    private state;
    private next;
    private index;
    private buffer;
    private key;
    private valueStart;
    private valueEnd;
    private slashed;
    private quotes;
    private brackets;
    private braces;
    private primitive;
    private parseValue;
    push(chunk: string): void;
    onObject<T>(key: string, callback: CallbackFn<T>): JSONStream;
    onArrayItem<T>(key: string, callback: CallbackFn<T>): JSONStream;
}