Dictionary Method 1

user = {
    'test' : [1,2,3],
     'greet' : 'Morning',
      'age' : 20,
}

print(user.get('age' , 50))

user2 = dict(name = 'Amita') # not a correct way to form dictionary
print(user2)

print('test' in user)
print('line' in user)