def has_connected_to_proxy(self) -> bool:
            """Whether the connection has successfully connected to its proxy.
            This returns False if no proxy is in use. Used to determine whether
            errors are coming from the proxy layer or from tunnelling to the target origin.
            """
Whether the connection has successfully connected to its proxy.
            This returns False if no proxy is in use. Used to determine whether
            errors are coming from the proxy layer or from tunnelling to the target origin.
            
Solutions/CyberArkAudit/Data Connectors/.python_packages/lib/site-packages/urllib3/_base_connection.py