code: def _get_backend_config(self, model: BackendModel) -> AWSConfig:
      return AWSConfig(
          **json.loads(model.config),
          creds=AWSCreds.parse_raw(model.auth).__root__,
      )
  
file_path: dstack/src/dstack/_internal/server/services/backends/configurators/aws.py
imports: import json
  from typing import List, Optional
  from dstack._internal.core.backends.aws import AWSBackend, auth
  from dstack._internal.core.backends.aws.config import AWSConfig
  from dstack._internal.core.errors import BackendAuthError
  from dstack._internal.core.models.backends.aws import AnyAWSConfigInfo, AWSAccessKeyCreds, AWSConfigInfo, AWSConfigInfoWithCreds, AWSConfigInfoWithCredsPartial, AWSConfigValues, AWSCreds, AWSDefaultCreds, AWSStoredConfig
  from dstack._internal.core.models.backends.base import BackendType, ConfigElementValue, ConfigMultiElement
  from dstack._internal.server import settings
  from dstack._internal.server.models import BackendModel, ProjectModel
  from dstack._internal.server.services.backends.configurators.base import Configurator, raise_invalid_credentials_error
label_desc: Use image node_id 6 for calling the AWSConfigurator obj's underlying member method code with example usage: obj._get_backend_config(model) and returns: AWSConfig