new_contents: from io import BytesIO, StringIO
  
  from rouver.types import EnvironmentType
  
  
  def default_environment() -> EnvironmentType:
      return {
          "REQUEST_METHOD": "GET",
          "SERVER_NAME": "www.example.com",
          "SERVER_PORT": "80",
          "SERVER_PROTOCOL": "HTTP/1.1",
          "wsgi.version": (1, 0),
          "wsgi.url_scheme": "http",
          "wsgi.input": BytesIO(b""),
          "wsgi.errors": StringIO(),
          "wsgi.multithread": False,
          "wsgi.multiprocess": False,
          "wsgi.run_once": False,
      }
  
subject: add default_environment()