***root_weight***(Tensor or Variable)* - Additional shared trainable parameters for each feature of the root node of shape `(in_channels x out_channels)` (default: `None`)
***root_weight***(Tensor or Variable)* - Additional shared trainable parameters for each feature of the root node of shape `(in_channels x out_channels)` (default: `None`)
***bias***(Tensor or Variable)* - Optional bias of shape (`out_channels`) (default: `None`)
***bias***(Tensor or Variable)* - Optional bias of shape `(out_channels)` (default: `None`)
### Returns
***output***(Tensor or Variable)* - Output node features of shape `(number_of_nodes x out_channels)`