/**
 * Time when the driver first saw this assignment in the mobile app. Will be omitted if the driver hasn't seen this assignment yet. RFC 3339 format. Millisecond precision and timezones are supported. (Examples: 2019-06-13T19:08:25Z, 2019-06-13T19:08:25.455Z, OR 2015-09-15T14:00:12-04:00).
 */
export type CarrierProposedAssignmentFirstSeenTime = string;