(f)
return f
Decorator for marking environment dependent filters.  The current
    :class:`Environment` is passed to the filter as first argument.
Decorator for marking environment dependent filters.  The current
    :class:`Environment` is passed to the filter as first argument.
Decorator for marking environment dependent filters . The current : class : Environment is passed to the filter as first argument .
def environmentfilter(f):
    """Decorator for marking environment dependent filters.  The current
    :class:`Environment` is passed to the filter as first argument.
    """
    f.environmentfilter = True
    return f
def environmentfilter ( f ) : f . environmentfilter = True return f