code: def http_proxy(self):
      
      if os.getenv('HTTP_PROXY'):
        return os.getenv('HTTP_PROXY')
      if os.getenv('http_proxy'):
        return os.getenv('http_proxy')
      return self.get_options().http_proxy
docs: Set ivy to use an http proxy.
  
      Expects a string of the form http://<host>:<port>