How to use the emoji.unicode_codes function in emoji

def test_style_multiple():
    with fio.open(POLY_FILE) as poly, \
            fio.open(LINE_FILE) as lines, \
            fio.open(POINT_FILE) as points:

        coords = list(poly.bounds) + list(lines.bounds) + list(points.bounds)
        bbox = (min(coords[0::4]), min(coords[1::4]), max(coords[2::4]), max(coords[3::4]))

        width = 20

        # Mix of colors and emoji with a color fill
        lyr_color_pairs = [(poly, ':+1:'), (lines, 'blue'), (points, 'red')]
        actual = gj2ascii.style_multiple(
            lyr_color_pairs, fill='yellow', width=width, bbox=bbox)
        assert emoji.unicode_codes.EMOJI_ALIAS_UNICODE[':+1:'] in actual
        assert '\x1b[34m\x1b[44m' in actual  # blue
        assert '\x1b[31m\x1b[41m' in actual  # red
        assert '\x1b[33m\x1b[43m' in actual  # yellow

        # Same as above but single character fill
        lyr_color_pairs = [(poly, ':+1:'), (lines, 'blue'), (points, 'red')]
        actual = gj2ascii.style_multiple(
            lyr_color_pairs, fill='.', width=width, bbox=bbox)
        assert emoji.unicode_codes.EMOJI_ALIAS_UNICODE[':+1:'] in actual
        assert '\x1b[34m\x1b[44m' in actual  # blue
        assert '\x1b[31m\x1b[41m' in actual  # red
        assert '.' in actual

        # Same as above but emoji fill
        lyr_color_pairs = [(poly, ':+1:'), (lines, 'blue'), (points, 'red')]
        actual = gj2ascii.style_multiple(