BytesToHex converts a byte slice to a hex string with a leading 0x.

ParseHex Convenience function to deal with 0x at the beginning of hex strings.

PrettyJson a simple pretty print for JSON examples.

SHA3256Hash hashes the input bytes using SHA3-256.

StrToBigInt converts a string to a big.Int for u128 and u256 values.

StrToUint64 converts a string to a uint64.