input: Write a function to generate a random number between two given numbers. The function should take two parameters representing the minimum and maximum values, and return a random integer between these two values (inclusive).
  assert random_number_generator(2, 5) in [2, 3, 4, 5]
  assert random_number_generator(10, 20) in range(10, 21)
  assert random_number_generator(1, 1) == 1
  assert random_number_generator(0, 100) in range(0, 101)
  assert random_number_generator(-10, 10) in range(-10, 11)
output: import random
  
  def random_number_generator(min_val, max_val):
      return random.randint(min_val, max_val)