Module Types.MessageSystemAttributeName

type t =
| SenderId
| SentTimestamp
| ApproximateReceiveCount
| ApproximateFirstReceiveTimestamp
| SequenceNumber
| MessageDeduplicationId
| MessageGroupId
| AWSTraceHeader
val str_to_t : (string * t) list
val t_to_str : (t * string) list
val to_string : t -> string
val of_string : string -> t
val make : 'a -> unit -> 'a
val parse : Ezxmlm.nodes -> t option
val to_query : t -> Aws.Query.t
val to_json : t -> Aws.Json.t
val of_json : Aws.Json.t -> t