<PackageReference Include="System.ServiceModel.Primitives" Version="8.0.0" />

System.ServiceModel.Channels.MessageAttemptInfo

namespace System.ServiceModel.Channels { internal struct MessageAttemptInfo { public Message Message { get; } public int RetryCount { get; } public object State { get; } public MessageAttemptInfo(Message message, long sequenceNumber, int retryCount, object state); public long GetSequenceNumber(); } }