async createTrialSubscription({customer, price, ...overrides}) {
        return await this.createSubscription({
            customer,
            price,
            status: 'trialing',
            trial_start: Date.now() / 1000,
            trial_end: (Date.now() + 1000 * 60 * 60 * 24 * 7) / 1000,
            ...overrides
        });
    }
Creates a trial subscription.

@param {object} options - The options for creating the trial subscription.
@param {string} options.customer - The customer ID.
@param {string} options.price - The price ID.
@param {object} [options.overrides] - Optional overrides for the trial subscription.
@returns {Promise<object>} - The created trial subscription object.