input: Write a function to generate an array of random numbers in Python given a specific size. The function should take an integer size as input and return an array of random integers between 0 and 99.
  import numpy as np
  
  def generate_random_array(size):
      return np.random.randint(0, 100, size)
  
  assert len(generate_random_array(10)) == 10
  assert all(0 <= num < 100 for num in generate_random_array(10))
output: def generate_random_array(size):
      return np.random.randint(0, 100, size)