code: def get_data_context(context_type, options, *args, **kwargs):
      
      if context_type == "SqlAlchemy":
          return SqlAlchemyDataContext(options, *args, **kwargs)
      elif context_type == "PandasCSV":
          return PandasCSVDataContext(options, *args, **kwargs)
      else:
          raise ValueError("Unknown data context.")
docs: Return a data_context object which exposes options to list datasets and get a dataset from
      that context. This is a new API in Great Expectations 0.4, and is subject to rapid change.
  
      :param context_type: (string) one of "SqlAlchemy" or "PandasCSV"
      :param options: options to be passed to the data context's connect method.
      :return: a new DataContext object