def __init__(self,
region_name,
host,
auth,
user_agent,
signature_version,
endpoint_prefix,
event_emitter,
proxies=None,
verify=True,
timeout=DEFAULT_TIMEOUT):
self._endpoint_prefix = endpoint_prefix
self._signature_version = signature_version
self._event_emitter = event_emitter
self._user_agent = user_agent
self.region_name = region_name
self.host = host
self.verify = verify
self.auth = auth
if proxies is None:
proxies = {}
self.proxies = proxies
self.http_session = Session()
self.timeout = timeout
self._lock = threading.Lock()
