code: def get_hash(self):
          
          depencency_hashes = [dep.get_hash() for dep in self.dep()]
          sl = inspect.getsourcelines
          hash_sources = [sl(self.__class__), self.args,
                          self.kwargs, *depencency_hashes]
          hash_input = pickle.dumps(hash_sources)
          return hashlib.md5(hash_input).hexdigest()
docs: Retruns a hash based on the the current table code and kwargs.
          Also changes based on dependent tables.