code: def str_url_to_grid_url(
      context: TransformContext,
  ) -> TransformContext:
      url = context.output.get("url", None)
      if url is not None and isinstance(url, str):
          context.output["url"] = GridURL.from_url(str)
      return context
  
imports: from typing import Any
  from typing import Callable
  from typing import Dict
  from typing import List
  from typing import Optional
  from typing import Type
  from typing import Union
  from pydantic import EmailStr
  from typing_extensions import Self
  from ..abstract_node import AbstractNode
  from ..node.credentials import SyftVerifyKey
  from ..service.context import AuthedServiceContext
  from ..service.context import NodeServiceContext
  from .grid_url import GridURL
  from .syft_object import Context
  from .syft_object import SyftBaseObject
  from .syft_object import SyftObjectRegistry
  from .uid import UID
label_desc: Use image node_id 10 for calling a global function with example usage: str_url_to_grid_url(context) and returns: context