old_contents: """
  byceps.services.email.service
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  
  :Copyright: 2006-2017 Jochen Kupperschmidt
  :License: Modified BSD, see LICENSE for details.
  """
  
  from typing import List, Optional
  
  from ... import email
  from ...typing import BrandID
  from ...util.jobqueue import enqueue
  
  from .models import EmailConfig
  
  
  class EmailError(Exception):
      pass
  
  
  def find_sender_address_for_brand(brand_id: BrandID) -> Optional[str]:
      """Return the configured sender e-mail address for the brand."""
      config = EmailConfig.query.get(brand_id)
  
      if config is None:
          return None
  
      return config.sender_address
  
  
  def get_sender_address_for_brand(brand_id: BrandID) -> str:
      """Return the configured sender e-mail address for the brand, or
      raise an error if none is configured for that brand ID.
      """
      sender_address = find_sender_address_for_brand(brand_id)
  
      if not sender_address:
          raise EmailError(
              'No sender address configured for brand "{}".'.format(brand_id))
  
      return sender_address
  
  
  def enqueue_email(sender: str, recipients: List[str], subject: str, body: str) \
                   -> None:
      """Enqueue an e-mail to be sent asynchronously."""
      enqueue(send_email, sender, recipients, subject, body)
  
  
  def send_email(sender: str, recipients: List[str], subject: str, body: str) \
                -> None:
      """Send an e-mail."""
      email.send(recipients, subject, body, sender=sender)
  
new_contents: """
  byceps.services.email.service
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  
  :Copyright: 2006-2017 Jochen Kupperschmidt
  :License: Modified BSD, see LICENSE for details.
  """
  
  from typing import List, Optional
  
  from ... import email
  from ...typing import BrandID
  from ...util.jobqueue import enqueue
  
  from .models import EmailConfig
  
  
  class EmailError(Exception):
      pass
  
  
  def find_sender_address_for_brand(brand_id: BrandID) -> Optional[str]:
      """Return the configured sender e-mail address for the brand."""
      config = EmailConfig.query.get(brand_id)
  
      if config is None:
          return None
  
      return config.sender_address
  
  
  def get_sender_address_for_brand(brand_id: BrandID) -> str:
      """Return the configured sender e-mail address for the brand, or
      raise an error if none is configured for that brand ID.
      """
      sender_address = find_sender_address_for_brand(brand_id)
  
      if not sender_address:
          raise EmailError(
              'No sender address configured for brand "{}".'.format(brand_id))
  
      return sender_address
  
  
  def enqueue_email(sender: str, recipients: List[str], subject: str, body: str) \
                   -> None:
      """Enqueue an e-mail to be sent asynchronously."""
      enqueue(send_email, sender, recipients, subject, body)
  
  
  def send_email(sender: str, recipients: List[str], subject: str, body: str) \
                -> None:
      """Send an e-mail."""
      email.send(sender, recipients, subject, body)
  
subject: Adjust arguments in function call