[ic] reading a session

[Mike Heins]

Quoting Mathias Picker (mathiasp@venus.virtual-earth.de):
> How do I read a session, given the sessionname

You don't. Next question? 8-)

Seriously, you don't want to do this. If you are going to save a session and
do something specific with it, do it explicitly to a file, i.e.:

	my $sess_string = $Tag->uneval( { ref => $Session } );
	$Tag->writefile("tmp/$Session->{id}.save", $sess_string);

Then in your retrieve (which must be a Global usertag), do something like:

	my $safe = new Safe;
	my $sess_string = $Tag->file("tmp/$id_to_retrieve.save");
	my $session_ref = $safe->reval($sess_string);

This disconnected-payment stuff is unreliable and is a real pain.
If the response is nearly real-time, you can pass the session in the
ID. Or you can set the session expire time higher.

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