napi_status napi_get_instance_data(napi_env env,void** data);
[in] env: The environment that the N-API call is invoked under.[out] data: The data item that was previously associated with the currently running Agent by a call tonapi_set_instance_data().
Returns napi_ok if the API succeeded.
This API retrieves data that was previously associated with the currently
running Agent via napi_set_instance_data(). If no data is set, the call will
succeed and data will be set to NULL.
