According to Appium API doc:
http://appium.io/docs/en/commands/session/create/index.html

I am supposed to use webdriver.Remote etc:

desired_caps = desired_caps = {
'platformName': 'Android',
'platformVersion': '7.0',
'deviceName': 'Android Emulator',
'automationName': 'UiAutomator2',
'app': PATH('/path/to/app')
}
self.driver = webdriver.Remote('http://127.0.0.1:4723', desired_caps)

However, its missing from appium.webdriver is webdriver.RemoteCommand the replacement?