class_docstr: This driver does nothing... goes nowhere. It's simply to prevent our system from crashing
  if a nonexistent LookupTable is referenced--in this case, we simply return the Null table,
  backed by this NullDriver.
class_docstr_tok: ["This","driver","does","nothing","...","goes","nowhere",".","It","'s","simply","to","prevent","our","system","from","crashing","if","a","nonexistent","LookupTable","is","referenced","--","in","this","case",",","we","simply","return","the","Null","table",",","backed","by","this","NullDriver","."]
code: def get(self, _, default=None):
      return default
  
imports: from abc import abstractmethod, ABCMeta
  from streamalert.shared.logger import get_logger
label_desc: Use image node_id 5 for calling the NullDriver obj's underlying member method code with example usage: obj.get(_, default) and returns: default