text: import os
  import socket
  
  
  def get_available_port() -> int:
      """Finds an available port for use in webviz on localhost. If a reload process,
      it will reuse the same port as found in the parent process by using an inherited
      environment variable.
      """
  
      if os.environ.get("WEBVIZ_PORT") is None:
          sock = socket.socket()
          sock.bind(("localhost", 0))
          port = sock.getsockname()[1]
          sock.close()
  
          os.environ["WEBVIZ_PORT"] = str(port)
          return port
  
      return int(os.environ.get("WEBVIZ_PORT"))  # type: ignore[arg-type]
  