old_contents: """
  The following exceptions may be raised during the corse of using
  :py:class:`tornado_aws.AWSClient` and :py:class:`tornado_aws.AsyncAWSClient`.
  
  """
  
  class AWSClientException(Exception):
      """Base exception class for AWSClient
  
      :ivar msg: The error message
  
      """
      fmt = 'An error occurred'
  
      def __init__(self, **kwargs):
          super(AWSClientException, self).__init__(self.fmt.format(**kwargs))
  
  
  class ConfigNotFound(AWSClientException):
      """The configuration file could not be parsed.
  
      :ivar path: The path to the config file
  
      """
      fmt = 'The config file could not be found ({path})'
  
  
  class ConfigParserError(AWSClientException):
      """Error raised when parsing a configuration file with
      :py:class`configparser.RawConfigParser`
  
      :ivar path: The path to the config file
  
      """
      fmt = 'Unable to parse config file ({path})'
  
  
  class NoCredentialsError(AWSClientException):
      """Raised when the credentials could not be located."""
      fmt = 'Credentials not found'
  
  
  class NoProfileError(AWSClientException):
      """Raised when the specified profile could not be located.
  
      :ivar path: The path to the config file
      :ivar profile: The profile that was specified
  
      """
      fmt = 'Profile ({profile}) not found ({path})'
  
new_contents: """
  The following exceptions may be raised during the course of using
  :py:class:`tornado_aws.client.AWSClient` and
  :py:class:`tornado_aws.client.AsyncAWSClient`:
  
  """
  
  
  class AWSClientException(Exception):
      """Base exception class for AWSClient
  
      :ivar msg: The error message
  
      """
      fmt = 'An error occurred'
  
      def __init__(self, **kwargs):
          super(AWSClientException, self).__init__(self.fmt.format(**kwargs))
  
  
  class ConfigNotFound(AWSClientException):
      """The configuration file could not be parsed.
  
      :ivar path: The path to the config file
  
      """
      fmt = 'The config file could not be found ({path})'
  
  
  class ConfigParserError(AWSClientException):
      """Error raised when parsing a configuration file with
      :py:class`configparser.RawConfigParser`
  
      :ivar path: The path to the config file
  
      """
      fmt = 'Unable to parse config file ({path})'
  
  
  class NoCredentialsError(AWSClientException):
      """Raised when the credentials could not be located."""
      fmt = 'Credentials not found'
  
  
  class NoProfileError(AWSClientException):
      """Raised when the specified profile could not be located.
  
      :ivar path: The path to the config file
      :ivar profile: The profile that was specified
  
      """
      fmt = 'Profile ({profile}) not found ({path})'
  
subject: Update the docstring