`TStudentSubmission`
pl		courseId
pl		courseWorkId
pl		id
pl		userId
pl		creationTime
pl		updateTime
pl		state
pl		late
pl		draftGrade
pl		assignedGrade
pl		alternateLink
pl		courseWorkType
pl		associatedWithDeveloper
pl		assignmentSubmission
pl		shortAnswerSubmission
pl		multipleChoiceSubmission

`TGoogleBaseObject`