Documentation for method write-to, assembled from the following types:
method write-to(IO::Socket::Async: Str() , Int() , Blob --> Promise)
This is the equivalent of
write for UDP sockets that have been created with the
udp method, it will try send a UDP message comprised of the bytes in the Blob
$b to the specified
$port returning a Promise that will be kept when the data is successfully sent or broken if it was unable to send the data. In order to send to a broadcast address the
:broadcast flag must have been specified when the socket was created.