Reads a Address from buf at the specified offset
Buffer object from where the bytes will be read
Number of bytes to skip before starting to read
Writes Address to buf at the specified offset
The address to be written to buf
Buffer object where the bytes will be written
Number of bytes to skip before starting to write.
Offset plus the number of bytes that has been written
Class to handle the protocol Address type http://dev.nuls.io/protocol/index.html#Address