hf_class.py

import torch
import torchvision.models as models
import torch.nn as nn
from huggingface_hub import PyTorchModelHubMixin

class MyResNet18(nn.Module, PyTorchModelHubMixin):
    def __init__(self, num_classes):
        super().__init__()
        self.model = models.resnet18(weights=None)
        num_ftrs = self.model.fc.in_features
        self.model.fc = nn.Linear(num_ftrs, num_classes)

    def forward(self, x):
        return self.model(x)