|def||__init__ (self, context)|
Interface for Python plugins which use the ROS client library. User-defined plugins may either subclass `rqt_gui_py.plugin.Plugin` or according to duck typing implement only the needed methods. A plugin must not call rospy.init_node() as this is performed once by the framework. The name of the ROS node consists of the prefix "rqt_gui_py_node_" and the process id.