quickfix syntax error

ui/app.py

@@ -23,7 +23,7 @@ from config import *
 class PlantDiseaseApp:
     def __init__(self):
         self.model_loader = ModelLoader()
-        self.current_modelName = config.MODEL_CONFIGS.keys[0]
+        self.current_modelName = list(config.MODEL_CONFIGS.keys())[0]
         self.current_modelName = "Basic CNN"
         self.model = self.model_loader.loadModel(self.current_modelName)
         self.flagged_predictions = []