ChannelObject

ChannelObject[] gives a new anonymous channel specification.

� represents a channel specified by a given URL.

ChannelObject["relpath"] represents a channel for the currently authenticated user at a relative path.

ChannelObject["id:�] represents a channel for the user with the specified Wolfram ID at the given path.

ChannelObject["/�] represents a channel at an absolute path on the channel broker.

Please visit the official Wolfram Language Reference for more details and examples on core symbols.