OptionalactivityThe activity described in the history record.
OptionalactivityThe key of the activity described in the history record.
OptionalactorDetails of the user whose action created the history record.
OptionalcauseDetails of the cause that triggered the creation the history record.
OptionaldescriptionThe description of the history record.
OptionaldescriptionThe description key of the history record.
OptionalemailThe description of the email address associated the history record.
OptionalemailThe description key of the email address associated the history record.
OptionalextraAdditional arbitrary information about the history record.
OptionalgeneratorDetails of the system that generated the history record.
OptionaltypeThe type of the history record.
Details of issue history metadata.