def update_ticket_status(ticket_id: str, status: str) -> str:
  """Update the status of a support ticket.

  Args:
      ticket_id (str): The unique identifier of the ticket.
      status (str): The new status to assign to the ticket (e.g., 'OPEN',
        'CLOSED', 'ESCALATED').

  Returns:
      str: A message indicating whether the ticket status was successfully
      updated.
  """
  for ticket in TICKET_DB:
    if ticket["ticket_id"] == ticket_id:
      ticket["status"] = status
      return f"Ticket {ticket_id} status updated to {status}."
  return "Ticket not found"
Update the status of a support ticket.

  Args:
      ticket_id (str): The unique identifier of the ticket.
      status (str): The new status to assign to the ticket (e.g., 'OPEN',
        'CLOSED', 'ESCALATED').

  Returns:
      str: A message indicating whether the ticket status was successfully
      updated.
  
tests/integration/fixture/ecommerce_customer_service_agent/agent.py