input: from typing import List
  
  def extract_start_with_08(phone_numbers: List[str]) -> List[str]:
      """Extract only the phone numbers that start with '08' from the given list.
      >>> extract_start_with_08(['0834567', '0945678', '07123456', '08901234', '07890123'])
      ['0834567', '08901234']
      """
output:     result = []
      for number in phone_numbers:
          if number.startswith('08'):
              result.append(number)
      return result