public void RemoveAttachmentsSynchronizationContext(ITisAttachmentsSynchronizationContext attachmentsSynchronizationContext)
 {
     if (m_AttachmentsSynchronizationContexts.Contains(attachmentsSynchronizationContext))
     {
         m_AttachmentsSynchronizationContexts.Remove(attachmentsSynchronizationContext);
     }
 }
 public virtual void AddAttachmentsSynchronizationContext(ITisAttachmentsSynchronizationContext attachmentsSynchronizationContext)
 {
     if (!m_AttachmentsSynchronizationContexts.Contains(attachmentsSynchronizationContext))
     {
         m_AttachmentsSynchronizationContexts.Add(attachmentsSynchronizationContext);
     }
 }