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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 get_support_package(tile):
 """Returns the support_package product."""


    packages = tile.find_products('support_package')
    if len(packages) == 0:
        return None
    elif len(packages) == 1:
        return packages[0]

    raise BuildError("Tile declared multiple support packages, only one is supported", packages=packages)