# SPDX-FileCopyrightText: Copyright (c) 2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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from typing import Any, Dict, List

import torch


class BasicDataCollator:
    def __call__(self, features: List[Dict[str, Any]]) -> Dict[str, torch.Tensor]:
        fields = features[0].keys()
        batch = {}
        for key in fields:
            batch[key] = torch.stack([item[key] for item in features])
        return batch