"Channel has an identity". In wikipedia (https://en.wikipedia.org/wiki/Communicating_sequential_processes https://en.wikipedia.org/wiki/Communicating_sequential

"Channel has an identity". In wikipedia (https://en.wikipedia.org/wiki/Communicating_sequential_processes https://en.wikipedia.org/wiki/Communicating_sequential_proce...) say "CSP processes are anonymous", but don't tell about the channels. So, how can a channel have a identity? Why is usefull? If the channel is a type declaration, why I need something else? This is something that actor have (PID, because you send "emails") that I don't see why is necesary in CSP