def define(self):
self.collections = []<EOL>self.camera_collection =SimpleCollection(filename=os.path.join(self.directory, "<STR_LIT>"),<EOL>row_classes=[<EOL>DataModel.EmptyRow,<EOL>DataModel.RTSPCameraRow,<EOL>DataModel.USBCameraRow<EOL>]<EOL>)<EOL>self.collections.append(self.camera_collection)<EOL>self.config_collection =SimpleCollection(filename=os.path.join(self.directory, "<STR_LIT>"),<EOL>row_classes=[  <EOL>DataModel.MemoryConfigRow<EOL>]<EOL>)<EOL>self.collections.append(self.config_collection)<EOL>
Define column patterns and collections