input: 
  import numpy as np
  
  def generate_random_3x3_array():
      """
      Using the NumPy library, generate a 3x3 array of random integers ranging from 1 to 5.
      
      >>> generate_random_3x3_array()
      [[5 2 3]
       [1 4 5]
       [3 2 1]]
      """
      return np.random.randint(1, 6, size=(3,3))
  
output:     return np.random.randint(1, 6, size=(3,3))