<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def get(self, keys, default=None):
 r""" This subclassed method can be used to obtain a dictionary containing subset of data on the object Parameters keys : string or list of strings The item or items to retrieve. default : any object The value to return in the event that the requested key(s) is not found. The default is ``None``. Returns ------- If a single string is given in ``keys``, this method behaves exactly as the ``dict's`` native ``get`` method and returns just the item requested (or the ``default`` if not found). If, however, a list of strings is received, then a dictionary containing each of the requested items is returned. Notes ----- This is useful for creating Pandas Dataframes of a specific subset of data. Note that a Dataframe can be initialized with a ``dict``, but all columns must be the same length. (e.g. ``df = pd.Dataframe(d)``) Examples -------- 1 2 It behaves exactly as normal with a dict key string is supplied: (125, 3) """

        # If a list of several keys is passed, then create a subdict
        if isinstance(keys, list):
            ret = {}
            for k in keys:
                ret[k] = super().get(k, default)
        else:  # Otherwise return numpy array
            ret = super().get(keys, default)
        return ret