NylasBooking: NewNylasBooking & { createdAt: string; updatedAt: string; } & ({ bookingRef?: undefined; } | { bookingRef: string; calendarId: string; cancelledReason?: string; endTime: number; grantId: string; location?: string; previousEndTime?: number; previousStartTime?: number; proposedEventId: string; startTime: number; timezone: string; })