human
Complete the below
def empty_if_none(fn):

    ''''A wrapper for a value to return \'\' if it\'s None. Useful on export.
    Can be used in config files (e.g. "transform.empty_if_none(unicode)" or
    as a decorator.
    Args:
    fn: Single argument transform function.
    Returns:
    Wrapped function.'
    '''
assistant
#Here is the Python program you requested.
    def wrapper(value):
        if (value is None):
            return ''
        return fn(value)
    return wrapper