def __init__(self, aws_access_key_id=None, aws_secret_access_key=None,
                 is_secure=True, host=None, port=None,
                 proxy=None, proxy_port=None,
                 proxy_user=None, proxy_pass=None, debug=0,
                 https_connection_factory=None, region=None, path='/',
                 api_version=None, security_token=None):
        if not region:
            region = RegionInfo(self, self.DefaultRegionName,
                                self.DefaultRegionEndpoint)
        self.region = region
        AWSQueryConnection.__init__(self, aws_access_key_id,
                                    aws_secret_access_key,
                                    is_secure, port, proxy, proxy_port,
                                    proxy_user, proxy_pass,
                                    self.region.endpoint, debug,
                                    https_connection_factory, path,
                                    security_token)
        if api_version:
            self.APIVersion = api_version
Init method to create a new connection to EC2.
dataset/ETHPy150Open darcyliu/storyboard/boto/ec2/connection.py/EC2Connection.__init__