def __getstate__(self):
state = self.__dict__.copy()<EOL>state.pop('<STR_LIT>')<EOL>return state<EOL>
Return serializable state.  This function will return a version of the
__dict__ with all "ephemeral" members stripped out.  "Ephemeral" members
are defined as those that do not need to be (nor should be) stored
in any kind of persistent file (e.g., NuPIC network XML file.)