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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 load_trie(filename):
 """ Load a BytesTrie from the marisa_trie on-disk format. """

    trie = marisa_trie.BytesTrie()
    # marisa_trie raises warnings that make no sense. Ignore them.
    with warnings.catch_warnings():
        warnings.simplefilter("ignore")
        trie.load(filename)
    return trie