class Keys():
    ERROR = 'ERROR'
    DEBUG = 'DEBUG'
    WARN = 'WARN'
    INFO = 'INFO'
    URL = 'url'
    TAG = 'tag'
    MESSAGE = 'message'
    LOG_LEVEL = 'level'
    REQUEST_METHOD = 'method'
    RESPONSE_STATUS = 'status'
    PAGE = 'page'
    SHOW = 'show'
    ALL = 'all'
