Would someone please explain what this function does? Does a pre-trained model means that I can just use its weights right away without doing anything? Thanks for the help.
def simple_conv(pretrained=False, num_classes=140):
    model = SimpleConv(num_classes)
    # if pretrained:
    #     model.load_state_dict(model_zoo.load_url(model_urls['alexnet']))
    return model