Passing an entire package to a snow cluster

I'm trying to parallelize (using snow::parLapply) some code that depends on a package (ie, a package other than snow). Objects referenced in the function called by parLapply must be explicitly passed to the cluster using clusterExport. Is there any way to pass an entire package to the cluster rather than having to explicitly name every function (including a package's internal functions called by user functions!) in clusterExport?