(h, f)
GIF ('87 and '89 variants)
GIF ('87 and '89 variants)
GIF ( 87 and 89 variants )
def test_gif(h, f):
    """GIF ('87 and '89 variants)"""
    if h[:6] in (b'GIF87a', b'GIF89a'):
        return 'gif'
def test_gif ( h , f ) : if h [ : 6 ] in ( b'GIF87a' , b'GIF89a' ) : return 'gif'