This is an internal function.
a list of opal object(s) obtained after login in to opal servers;
these objects hold also the data assign to R, as
a character, the name the object to look for.
After calling an assign function it is important to know whether or not the action has been completed by cjhecking if the output actually exists on the server side.
nothing is return but the process is stopped if the object was not generated in any one server.
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