'Set shape based parameters of this layer given an input tuple, int
or input layer.
Arguments:
in_obj (int, tuple, Layer, Tensor or dataset): object that provides shape
information for layer
Returns:
(tuple): shape of output data'

def configure(self, in_obj):

    super(RecurrentOutput, self).configure(in_obj)
    (self.nin, self.nsteps) = interpret_in_shape(self.in_shape)
    self.out_shape = (self.nin, 1)
    return self
