def get_application_upgrade(<EOL>self, application_id, timeout=<NUM_LIT>, custom_headers=None, raw=False, **operation_config):
api_version = "<STR_LIT>"<EOL>url = self.get_application_upgrade.metadata['<STR_LIT:url>']<EOL>path_format_arguments = {<EOL>'<STR_LIT>': self._serialize.url("<STR_LIT>", application_id, '<STR_LIT:str>', skip_quote=True)<EOL>}<EOL>url = self._client.format_url(url, **path_format_arguments)<EOL>query_parameters = {}<EOL>query_parameters['<STR_LIT>'] = self._serialize.query("<STR_LIT>", api_version, '<STR_LIT:str>')<EOL>if timeout is not None:<EOL><INDENT>query_parameters['<STR_LIT>'] = self._serialize.query("<STR_LIT>", timeout, '<STR_LIT>', maximum=<NUM_LIT>, minimum=<NUM_LIT:1>)<EOL><DEDENT>header_parameters = {}<EOL>header_parameters['<STR_LIT>'] = '<STR_LIT:application/json>'<EOL>if custom_headers:<EOL><INDENT>header_parameters.update(custom_headers)<EOL><DEDENT>request = self._client.get(url, query_parameters, header_parameters)<EOL>response = self._client.send(request, stream=False, **operation_config)<EOL>if response.status_code not in [<NUM_LIT:200>]:<EOL><INDENT>raise models.FabricErrorException(self._deserialize, response)<EOL><DEDENT>deserialized = None<EOL>if response.status_code == <NUM_LIT:200>:<EOL><INDENT>deserialized = self._deserialize('<STR_LIT>', response)<EOL><DEDENT>if raw:<EOL><INDENT>client_raw_response = ClientRawResponse(deserialized, response)<EOL>return client_raw_response<EOL><DEDENT>return deserialized<EOL>
Gets details for the latest upgrade performed on this application.

        Returns information about the state of the latest application upgrade
        along with details to aid debugging application health issues.

        :param application_id: The identity of the application. This is
         typically the full name of the application without the 'fabric:' URI
         scheme.
         Starting from version 6.0, hierarchical names are delimited with the
         "~" character.
         For example, if the application name is "fabric:/myapp/app1", the
         application identity would be "myapp~app1" in 6.0+ and "myapp/app1" in
         previous versions.
        :type application_id: str
        :param timeout: The server timeout for performing the operation in
         seconds. This timeout specifies the time duration that the client is
         willing to wait for the requested operation to complete. The default
         value for this parameter is 60 seconds.
        :type timeout: long
        :param dict custom_headers: headers that will be added to the request
        :param bool raw: returns the direct response alongside the
         deserialized response
        :param operation_config: :ref:`Operation configuration
         overrides<msrest:optionsforoperations>`.
        :return: ApplicationUpgradeProgressInfo or ClientRawResponse if
         raw=true
        :rtype: ~azure.servicefabric.models.ApplicationUpgradeProgressInfo or
         ~msrest.pipeline.ClientRawResponse
        :raises:
         :class:`FabricErrorException<azure.servicefabric.models.FabricErrorException>`