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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 is_supported_content_addressed_uri(uri: URI) -> bool: """ Returns a bool indicating whether provided uri is currently supported. Currently Py-EthPM only supports IPFS and Github blob content-addressed uris. """

    if not is_ipfs_uri(uri) and not is_valid_content_addressed_github_uri(uri):
        return False
    return True