input: Write a function to generate a list using a while loop in Python that appends the current number to the list. The list should contain numbers from 0 to 9 inclusive. If the input list is empty, return an empty list.
  assert generate_list([])==[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  assert generate_list([1, 2, 3])==[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  assert generate_list([-1, -2, -3])==[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  assert generate_list([10, 11, 12])==[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  assert generate_list([0])==[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
output: def generate_list(input_list):
      result = []
      i = 0
      while i <= 9:
          result.append(i)
          i += 1
      return result