iOS:
from selenium.webdriver.common.by import By
class MobileBy(By):
IOS_PREDICATE = '-ios predicate string'
IOS_UIAUTOMATION = '-ios uiautomation'
IOS_CLASS_CHAIN = '-ios class chain'
ANDROID_UIAUTOMATOR = '-android uiautomator'
ANDROID_VIEWTAG = '-android viewtag'
ANDROID_DATA_MATCHER = '-android datamatcher'
ACCESSIBILITY_ID = 'accessibility id'
IMAGE = '-image'
CUSTOM = '-custom'
android:
class