suppressed useless warnings

raspberryPi.py

 import cv2
 import numpy as np
-from tensorflow.keras.models import load_model
+from tensorflow.keras.models import load_model # type: ignore
 import os
 
 def extract_patches(image):

rubiks_cube_color_classifier.py

 import cv2
 import numpy as np
-from tensorflow.keras.models import Sequential
-from tensorflow.keras.layers import Conv2D, MaxPooling2D, Flatten, Dense
+from tensorflow.keras.models import Sequential # type: ignore
+from tensorflow.keras.layers import Conv2D, MaxPooling2D, Flatten, Dense # type: ignore
 import os
 import json