Array20 casts a slice to an array of length 32.

Array32 casts a slice to an array of length 32.

Array65 casts a slice to an array of length 65.

Array8 casts a slice to an array of length 2.

EthAddress casts a byte slice to an Ethereum address.

Must20 casts a slice to an array of length 20.

Must32 casts a slice to an array of length 32.