input: Write a function to generate an array of random numbers in Python using the numpy library. The function should take an integer size as input and return the array of random numbers. The numbers should be integers between 0 and 99 (inclusive).
  
  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 <= x <= 99 for x in generate_random_array(10))
  assert len(generate_random_array(0))==0
  assert generate_random_array(5).dtype == np.int64
output: def generate_random_array(size):
      return np.random.randint(0, 100, size)