Source code for nemo_automodel.components.datasets.diffusion

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#
# 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,
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"""Diffusion model datasets and dataloaders."""

import importlib

_LAZY_ATTRS = {
    "MetaFilesDataset": (".meta_files_dataset", "MetaFilesDataset"),
    "TextToImageDataset": (".text_to_image_dataset", "TextToImageDataset"),
    "MultiTierBucketCalculator": (".multi_tier_bucketing", "MultiTierBucketCalculator"),
    "SequentialBucketSampler": (".sampler", "SequentialBucketSampler"),
    "collate_fn_flux": (".collate_fns", "collate_fn_flux"),
    "build_flux_multiresolution_dataloader": (".collate_fns", "build_flux_multiresolution_dataloader"),
    "build_mock_dataloader": (".mock_dataloader", "build_mock_dataloader"),
    "build_dataloader": (".meta_files_dataset", "build_dataloader"),
}

__all__ = sorted(_LAZY_ATTRS.keys())




def __getattr__(name: str):
    if name in _LAZY_ATTRS:
        module_path, attr_name = _LAZY_ATTRS[name]
        module = importlib.import_module(module_path, __name__)
        attr = getattr(module, attr_name)
        globals()[name] = attr
        return attr
    raise AttributeError(f"module {__name__!r} has no attribute {name!r}")





def __dir__():
    return sorted(__all__)