Is there a platform function that will do the following?

convertBase :: (Num a, Num b) => Int -> Int -> [a] -> [b]

Convert a number from base 'a' to base 'b' where each list item is a digit in the number. for example:

convertBase 2 10 [1,1,0,1] = [1, 3]

I hope that makes sense, let me know if i can clear anything up

haskell base-conversion
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