input: from typing import Tuple
  
  def send_email_task(recipient_info: Tuple[str, str], email_content: Tuple[str, str]) -> bool:
      """
      Create a Celery task to send an email using the provided details.
      
      >>> send_email_task(('John Smith', 'john@example.com'), ('Hello World', 'This is a test email.'))
      True
      """
output:     from celery import Celery
  
      app = Celery('tasks', broker='pyamqp://guest@localhost//')
  
      @app.task
      def send_email(recipient_name, recipient_email, subject, body):
          # Simulate sending an email
          print(f"Sending email to {recipient_name} <{recipient_email}>")
          print(f"Subject: {subject}")
          print(f"Body: {body}")
          return True
  
      recipient_name, recipient_email = recipient_info
      subject, body = email_content
      send_email.delay(recipient_name, recipient_email, subject, body)
      return True