[Tutor] searching for a string in a dictionary

[anil maran]

all_types:
<Storage {'type': 'childcare', 'id': 1, 'created': datetime.datetime(2006, 7, 26, 15, 18, 34, 887436)}>
<Storage {'type': 'household', 'id': 2, 'created': datetime.datetime(2006, 7, 26, 15, 18, 34, 887436)}>
.....
<Storage {'type': 'knews', 'id': 10, 'created': datetime.datetime(2006, 7, 26, 15, 18, 34, 887436)}>
there is such a list

how do i search for a particular string say teststring in this list

i tried

if teststring in all_types:
if teststring in all_types.type: 
it doesnt work


please help me out here
should i use lambda


 		
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