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hi and welcome to another type with me in this episode im gonna talk about index signatures so imagine that our code is something like this right its a writer and then you have a treasure too and they have keys and of course they have also values which are just numbers and yeah you want to accumulate them together right of course you dont know what the object would be because here you have profit and hearing treasure here you have a contract treasure so how are you going to deal with that what would be here the question marks and how can we get the total treasure out of that well thats why you need index signatures and how this is an index signature looks like well it looks like this right it has a key in the string and it has a number so everything here needs to be a number tonight and then we can accumulate them and then you will see that we get a result out of that if i save that and were going to do something like console.log log you will see that we get an index signature po