Is it possible to set author of a new comment using Atlassian SDK? I tried following but didn't work
JiraInstance = Jira.CreateRestClient("<url>", "<user>", "<password>");
Atlassian.Jira.Comment c = new Atlassian.Jira.Comment();
c.Body = "my comment from code";
c.Author = "<user name>";
JiraInstance.Issues.AddCommentAsync(Key, c)