input: 
  def optimize_print_list(numbers: list) -> str:
      """
      Takes a list of numbers and prints each number in a new line. This optimized
      function avoids the use of a loop and uses print's unpacking feature with sep
      parameter instead.
      
      >>> optimize_print_list([1, 2, 3, 4, 5, 6])
      'print(*numbers, sep="\\\\n")'
      >>> optimize_print_list([7, 8, 9])
      'print(*numbers, sep="\\\\n")'
      """
      return 'print(*numbers, sep="\\n")'
  
output:     return 'print(*numbers, sep="\\n")'