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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 _collect_zipimporter_cache_entries(normalized_path, cache):
 """ Return zipimporter cache entry keys related to a given normalized path. Alternative path spellings (e.g. those using different character case or those using alternative path separators) related to the same path are included. Any sub-path entries are included as well, i.e. those corresponding to zip archives embedded in other zip archives. """

    result = []
    prefix_len = len(normalized_path)
    for p in cache:
        np = normalize_path(p)
        if (np.startswith(normalized_path) and
                np[prefix_len:prefix_len + 1] in (os.sep, '')):
            result.append(p)
    return result