code: def raise_invalid_credentials_error(
      fields: Optional[List[List[str]]] = None,
  ):
      raise BackendInvalidCredentialsError(fields=fields)
  
file_path: dstack/src/dstack/_internal/server/services/backends/configurators/base.py
imports: from abc import ABC, abstractmethod
  from typing import List, Optional
  from dstack._internal.core.backends.base import Backend
  from dstack._internal.core.errors import BackendInvalidCredentialsError
  from dstack._internal.core.models.backends import AnyConfigInfo, AnyConfigInfoWithCreds, AnyConfigInfoWithCredsPartial, AnyConfigValues
  from dstack._internal.core.models.backends.base import BackendType
  from dstack._internal.server.models import BackendModel, ProjectModel
label_desc: Use image node_id 1 for calling a global function with example usage: raise_invalid_credentials_error(fields) without return types