input: from typing import Any
  
  
  def get_current_datetime() -> str:
      """
      Create a function that returns the current date and time in the format "YYYY-MM-DD HH:MM:SS".
      
      >>> get_current_datetime()
      '2023-10-13 14:30:00'
      >>> get_current_datetime()
      '2023-10-13 14:31:00'
      """
      return datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")
output:     import datetime