input: Write a python function to create an animated GIF from a list of blank images with text drawn on them.
  assert len(imageio.mimread('animated.gif')) == 5
  assert imageio.mimread('animated.gif')[0].shape == (400, 400, 3)
output: def create_animated_gif(text_list):
      from PIL import Image, ImageDraw
      import imageio
  
      images = []
      for text in text_list:
          img = Image.new('RGB', (400, 400), color = (255, 255, 255))
          d = ImageDraw.Draw(img)
          d.text((10,10), text, fill=(0,0,0))
          images.append(img)
  
      imageio.mimsave('animated.gif', [image for image in images], duration=0.5)
  
  # Example usage
  text_list = ["Frame 1", "Frame 2", "Frame 3", "Frame 4", "Frame 5"]
  create_animated_gif(text_list)