input: Write a function to print the current date and time in the specified format.
  assert isinstance(print_current_datetime(), str)
  assert "at" in print_current_datetime()
  assert len(print_current_datetime().split()) == 8
output: from datetime import datetime
  
  def print_current_datetime():
      now = datetime.now()
      formatted_date_time = now.strftime("%A, %B %d, %Y at %I:%M:%S %p %Z")
      return formatted_date_time