This is the generic class which represents the channel between the client
and the daemon. It is responsible for sending the request to the daemon and
receiving the response from the daemon.
A class which contains a subset of the SshnpParams
This may be used when part of the params come from separate sources
e.g. default values from a config file and the rest from the command line
Checks if the provided atSign's atServer has been properly activated with a public RSA key.
atClient must be authenticated
atSign is the atSign to check
Returns true, if the atSign's cloud secondary server has an existing public:publickey@ in their server,
Returns false, if the atSign's cloud secondary exists, but does not have an existing public:publickey@
Throws AtClientException if the cloud secondary is invalid or not reachable