Expect, sessions and packages

I have created a package of simple "telnet"ed commands but can't find a way
to have a "session" span the package. Currently, my expect script locks
like this...

package require mypack 1.0
spawn telnet host
mypack::op1
mypack::op2
...
close

Is there anyway I can move the spawn into my package and have the package
track the session? I suppose I can pass a handle in and out, perhaps. Is
that the way to go?

BTW, I probably only ever have a single session but I suppose handling
multiples would be useful.

Cheers,
Paul DS

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