code: def add_to_capabilities(self, capabilities):
          
          proxy_caps = {}
          proxy_caps['proxyType'] = self.proxyType['string']
          if self.autodetect:
              proxy_caps['autodetect'] = self.autodetect
          if self.ftpProxy:
              proxy_caps['ftpProxy'] = self.ftpProxy
          if self.httpProxy:
              proxy_caps['httpProxy'] = self.httpProxy
          if self.proxyAutoconfigUrl:
              proxy_caps['proxyAutoconfigUrl'] = self.proxyAutoconfigUrl
          if self.sslProxy:
              proxy_caps['sslProxy'] = self.sslProxy
          if self.noProxy:
              proxy_caps['noProxy'] = self.noProxy
          if self.socksProxy:
              proxy_caps['socksProxy'] = self.socksProxy
          if self.socksUsername:
              proxy_caps['socksUsername'] = self.socksUsername
          if self.socksPassword:
              proxy_caps['socksPassword'] = self.socksPassword
          capabilities['proxy'] = proxy_caps
docs: Adds proxy information as capability in specified capabilities.
  
          :Args:
           - capabilities: The capabilities to which proxy will be added.