def remove_assignment(lti=None):
assignment_id = int(request.values.get('assignment_id'))
assignment = Assignment.by_id(assignment_id)
# Verify exists
check_resource_exists(assignment, "Assignment", assignment_id)
# Verify permissions
require_course_instructor(g.user, assignment.course_id)
Assignment.remove(assignment.id)
return jsonify(success=True)
