torch.optim.Optimizer.add_param_group# Optimizer.add_param_group(param_group)[source]# Add a param group to the Optimizer s param_groups. This can be useful when fine tuning a pre-trained network as frozen layers can be made trainable and added to the Optimizer as training progresses. Parameters param_group (dict) – Specifies what Tensors should be optimized along with group specific optimization options.