code: def data(self, ctx=None):
          
          d = self._check_and_get(self._data, ctx)
          if self._rate:
              d = nd.Dropout(d, self._rate, self._mode, self._axes)
          return d
docs: Returns a copy of this parameter on one context. Must have been
          initialized on this context before.
  
          Parameters
          ----------
          ctx : Context
              Desired context.
          Returns
          -------
          NDArray on ctx