input: Write a python function to generate a random number between a given lower and upper bound using the random.uniform method.
  assert 10 <= generateRandomNumber(10, 20) <= 20
  assert 50 <= generateRandomNumber(50, 100) <= 100
  assert 1 <= generateRandomNumber(1, 5) <= 5
output: import random
  
  def generateRandomNumber(lower, upper):
      return random.uniform(lower, upper)