def sanitize_smiles_file_name(file_name):
    """Sanitizes a file name which contains smiles patterns.
    Currently this method simply replaces any `/` characters
    with a `_` character.

    Parameters
    ----------
    file_name: str
        The file name to sanitize

    Returns
    -------
    The sanitized file name.
    """
    return file_name.replace('/', '_')