(self, input_shape)
return input_shape[0], input_shape[-1]
compute output shape
compute output shape
compute output shape
def compute_output_shape(self, input_shape):
    """compute output shape"""
    return input_shape[0], input_shape[-1]
def compute_output_shape ( self , input_shape ) : return input_shape [ 0 ] , input_shape [ - 1 ]