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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 find_csv_packages(m, downloader):
 """Locate the build CSV package, which will have distributions if it was generated as and S3 package"""

    from metapack.package import CsvPackageBuilder

    pkg_dir = m.package_root
    name = m.doc.get_value('Root.Name')

    package_path, cache_path = CsvPackageBuilder.make_package_path(pkg_dir, name)

    if package_path.exists():
        return open_package(package_path, downloader=downloader)