code: def reshape(self, data_shape=None, label_shape=None):
          
          if data_shape is not None:
              self.check_data_shape(data_shape)
              self.provide_data = [(self.provide_data[0][0], (self.batch_size,) + data_shape)]
              self.data_shape = data_shape
          if label_shape is not None:
              self.check_label_shape(label_shape)
              self.provide_label = [(self.provide_label[0][0], (self.batch_size,) + label_shape)]
              self.label_shape = label_shape
docs: Reshape iterator for data_shape or label_shape.
  
          Parameters
          ----------
          data_shape : tuple or None
              Reshape the data_shape to the new shape if not None
          label_shape : tuple or None
              Reshape label shape to new shape if not None