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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def from_sample(sample):
 """Upload results of processing from an analysis pipeline sample. """

    upload_config = sample.get("upload")
    if upload_config:
        approach = _approaches[upload_config.get("method", "filesystem")]
        for finfo in _get_files(sample):
            approach.update_file(finfo, sample, upload_config)
    return [[sample]]