channel
Create a handle to a Channel that can be used to obtain a Subscription.
The function is cheap to call, and the returned object is lightweight, as it doesn't change any client or server state. It is therefore permitted to use this method whenever a representation of a channel is required.
The returned Channel holds a reference to this PubNub instance internally.
Return
a Channel instance representing the channel with the given name
Parameters
name
the name of the channel to return. Supports wildcards by ending it with ".*". See more in the documentation