Python: Use of if else inside a dict to set a value to key

I am looking for a way to use if else condition in a dictionary to set a value to a key. Is there a way?

The example below might help you understand what I want to do. This is not a functional python code. Just an example to give you an idea.

age = 22
di = {
    'name': 'xyz',
    if age>=18:
        'access_grant': 'yes',
    else:
        'access_grant': 'no',
     }   

Comment if you don't get the question. please don't downvote.