CryptoAsset is a convenience union representing tokens that are native to the supported blockchains.
Remarks
The reason we make a distinction between CryptoAsset and Asset is that CryptoAsset are
kind of "special" in that they are the only assets that do not have a canonical contract address
and they are used to pay for gas fees.
CryptoAsset is a convenience union representing tokens that are native to the supported blockchains.