EmailUsersCourseData_1_2# class EmailUsersCourseData_1_2[source]# subject: str# The subject of the email body: str# The plain text body of the email email_all_users: bool# Email all users of the course except those specified in usernames. If false we will email only the users specified in usernames. users: Sequence[UserInput]# The usernames of the users to email (or not to email, depending on the value of email_all_users).