function myFunction() {
  var exec = Classroom.Courses.CourseWork.create({
    title: "Test File",
    state: "DRAFT",
    materials: [
      {
        driveFile: {id: "1ENk55RMtApIydyPFe0uyuhmu6nSV4", title: "Test File"},
        shareMode: "STUDENT_COPY"
      }
      ],
    workType: "ASSIGNMENT"
  }, "3896298178");
  Logger.log(exec);
}