T and S in square brackets are generic types. You should read `Nim in Action`. Very nicely written book on Nim.
[https://book.picheta.me](https://book.picheta.me)
T and S in square brackets are generic types. You should read `Nim in Action`. Very nicely written book on Nim.
[https://book.picheta.me](https://book.picheta.me)