Module Types.AlarmHistoryItem
type t={alarm_name : Aws.BaseTypes.String.t option;alarm_type : AlarmType.t option;timestamp : Aws.BaseTypes.DateTime.t option;history_item_type : HistoryItemType.t option;history_summary : Aws.BaseTypes.String.t option;history_data : Aws.BaseTypes.String.t option;}
val make : ?alarm_name:Aws.BaseTypes.String.t -> ?alarm_type:AlarmType.t -> ?timestamp:Aws.BaseTypes.DateTime.t -> ?history_item_type:HistoryItemType.t -> ?history_summary:Aws.BaseTypes.String.t -> ?history_data:Aws.BaseTypes.String.t -> unit -> tval parse : Ezxmlm.nodes -> t optionval to_query : t -> Aws.Query.tval to_json : t -> [> `Assoc of (string * Aws.Json.t) list ]val of_json : Aws.Json.t -> t