Matplotlib.axis.Axis.set_rasterized() function in Python

# Implementation of matplotlib function
from matplotlib.axis import Axis
import numpy as np  
import matplotlib.pyplot as plt  
     
    
d = np.arange(49).reshape(7, 7)  
xx, yy = np.meshgrid(np.arange(8), np.arange(8))  
     
fig, ax = plt.subplots()  
     
ax.set_aspect(1)  
m = ax.pcolormesh(xx, yy, d)  
Axis.set_rasterized(m, True)  

fig.suptitle('matplotlib.axis.Axis.set_rasterized() \
function Example\n', fontweight ="bold")  
  
plt.show() 

# Implementation of matplotlib function
from matplotlib.axis import Axis
import matplotlib.pyplot as plt  
import matplotlib.colors as mcolors  
import matplotlib.gridspec as gridspec  
import numpy as np  
     
     
arr = np.arange(20).reshape((4, 5))  
norm = mcolors.Normalize(vmin = 0., vmax = 20.)  
     
pc_kwargs = {'cmap': 'BuGn', 'norm': norm}  
     
fig, ax = plt.subplots( )  
     
im = ax.pcolormesh(arr, **pc_kwargs)  
fig.colorbar(im, ax = ax, shrink = 0.7)  
Axis.set_rasterized(im, False)  

fig.suptitle('matplotlib.axis.Axis.set_rasterized() \
function Example\n', fontweight ="bold")  
  
plt.show()