...Array.from({ length: this.driftBackward }, (v, k) => BigInt(-(k + 1))),
...Array.from({ length: this.driftForward }, (v, k) => BigInt(k + 1)),
];
}
...Array.from({ length: this.driftBackward }, (v, k) => BigInt(-(k + 1))),
...Array.from({ length: this.driftForward }, (v, k) => BigInt(k + 1)),
];
}