return the two biggest numbers in a list of dictionaries

def two_biggest(l):
  pass
  
l = [
  {'id': 5, 'value': 5},
  {'id': 2, 'value': 2},
  {'id': 3, 'value': 3},
  {'id': 4, 'value': 4},
  {'id': 9, 'value': 9},
  {'id': 1, 'value': 1}
]

two_biggest(l)