text: """Models specific to the resource strategy."""
  # pylint: disable=no-self-use
  from typing import Any, Dict, List, Literal, Optional
  
  from oteapi.models import ResourceConfig, SessionUpdate
  from pydantic import Field
  
  from oteapi_optimade.models.config import OPTIMADEConfig
  from oteapi_optimade.models.custom_types import OPTIMADEUrl
  
  
  class OPTIMADEResourceConfig(ResourceConfig):
      """OPTIMADE-specific resource strategy config."""
  
      accessUrl: OPTIMADEUrl = Field(
          ...,
          description="Either a base OPTIMADE URL or a full OPTIMADE URL.",
      )
      accessService: Literal["optimade", "OPTIMADE", "OPTiMaDe"] = Field(
          ...,
          description="The registered strategy name for OPTIMADEResourceStrategy.",
      )
      configuration: OPTIMADEConfig = Field(
          OPTIMADEConfig(),
          description=(
              "OPTIMADE configuration. Contains relevant information necessary to "
              "perform OPTIMADE queries."
          ),
      )
  
  
  class OPTIMADEResourceSession(SessionUpdate):
      """OPTIMADE session for the resource strategy."""
  
      optimade_config: Optional[OPTIMADEConfig] = Field(
          None,
          description=(
              "OPTIMADE configuration. Contains relevant information necessary to "
              "perform OPTIMADE queries."
          ),
      )
      optimade_resources: List[Dict[str, Any]] = Field(
          [],
          description=(
              "List of OPTIMADE resources (structures, references, errors, ...) returned"
              " from the OPTIMADE request."
          ),
      )
      optimade_resource_model: str = Field(
          "",
          description=(
              "Importable path to the resource model to be used to parse the OPTIMADE "
              "resources in `optimade_resource`. The importable path should be a fully "
              "importable path to a module separated by a colon (`:`) to then define the "
              "resource model class name. This means one can then do:\n\n```python\n"
              "from PACKAGE.MODULE import RESOURCE_CLS\n```\nFrom the value "
              "`PACKAGE.MODULE:RESOURCE_CLS`"
          ),
          regex=(
              r"^([a-zA-Z][a-zA-Z0-9_]*(\.[a-zA-Z][a-zA-Z0-9_]*)*"  # package.module
              r":[a-zA-Z][a-zA-Z0-9_]*)?$"  # class
          ),
      )
  
      class Config:
          """Pydantic configuration for `OPTIMADEResourceSession`."""
  
          validate_assignment = True
          arbitrary_types_allowed = True
  