in python

def no_extra_members(group_list: List[List[int]], class_list: List[int]) -> bool: ''' Return True iff every student in group_list is a member of class_list.

>>> no_extra_members([[1, 3, 4], [2]], [1, 2, 3, 4]) True

>>> no_extra_members([[1, 2], [3, 4]], [1, 2, 4]) False '''

# CODE HERE