A struct representing a booking notification.
Nylas docs
@type t() :: %ExNylas.WebhookNotification.Booking{ booking_id: String.t() | nil, booking_info: ExNylas.WebhookNotification.Booking.BookingInfo.t() | nil, booking_ref: String.t() | nil, booking_type: String.t() | nil, configuration_id: String.t() | nil, object: String.t() | nil }