model.py

import torch
import torchvision

from torch import nn

def create_effnetb2_model(num_classes:int=3, seed:int=42):
    weights = torchvision.models.EfficientNet_B2_Weights.DEFAULT
    transforms = weights.transforms()
    model = torchvision.models.efficientnet_b2(weights=weights)

    for param in model.parameters():
        param.requires_grad = False
    torch.manual_seed(seed)
    model.classifier = nn.Sequential(
        nn.Dropout(p=0.3, inplace=True),
        nn.Linear(in_features = 1408, out_features = num_classes),
    )
    return model, transforms