Wand composite() function in Python

Syntax: wand.drawing.composite(image, left, top, operator, arguments, gravity) Parameters :

Parameter	Input Type	Description
image	wand.image.Image	the image placed over the current image
left	numbers.Integral	the x-coordinate where image will be placed
top	numbers.Integral	the y-coordinate where image will be placed
operator	basestring	the operator that affects how the composite is applied to the image.
arguments	basestring	Additional numbers given as a geometry string, or comma delimited values. This is needed for 'blend', 'displace', 'dissolve', and 'modulate' operators.
gravity	basestring	Calculate the top & left values based on gravity value from GRAVITY_TYPES.

('undefined', 'alpha', 'atop', 'blend', 'blur', 'bumpmap', 'change_mask', 'clear', 'color_burn', 'color_dodge', 'colorize', 'copy_black', 'copy_blue', 'copy', 'copy_cyan', 'copy_green', 'copy_magenta', 'copy_alpha', 'copy_red', 'copy_yellow', 'darken', 'darken_intensity', 'difference', 'displace', 'dissolve', 'distort', 'divide_dst', 'divide_src', 'dst_atop', 'dst', 'dst_in', 'dst_out', 'dst_over', 'exclusion', 'hard_light', 'hard_mix', 'hue', 'in', 'intensity', 'lighten', 'lighten_intensity', 'linear_burn', 'linear_dodge', 'linear_light', 'luminize', 'mathematics', 'minus_dst', 'minus_src', 'modulate', 'modulus_add', 'modulus_subtract', 'multiply', 'no', 'out', 'over', 'overlay', 'pegtop_light', 'pin_light', 'plus', 'replace', 'saturate', 'screen', 'soft_light', 'src_atop', 'src', 'src_in', 'src_out', 'src_over', 'threshold', 'vivid_light', 'xor', 'stereo')

from wand.image import Image, COMPOSITE_OPERATORS
from wand.drawing import Drawing
from wand.display import display

gog = Image(filename ='gog.png')
road = Image(filename ='rd.jpg')

g = gog.clone()
r = road.clone()
with Drawing() as draw:
    # composite image with color_burn operator
    draw.composite(operator ='color_burn', left = 20, top = 30,
                   width = r.width, height = r.height, image = r)
    draw(g)
    g.save(filename ="colorburn.png")
    display(g)

from wand.image import Image, COMPOSITE_OPERATORS
from wand.drawing import Drawing
from wand.display import display

gog = Image(filename ='gog.png')
road = Image(filename ='rd.jpg')

g = gog.clone()
r = road.clone()
with Drawing() as draw:
    # composite image with dissolve operator
    draw.composite(operator = 'luminize', left = 20, top = 30,
                   width = g.width, height = g.height, image = g)
    draw(r)
    r.save(filename ="dissolve.png")
    display(r)