""""""

from abc import ABC


class BaseApp(ABC):
    """
    Absstract class for app.
    """

    app_name = ""           # Unique name used for creating engine and widget
    app_module = ""         # App module string used in import_module
    app_path = ""           # Absolute path of app folder
    display_name = ""       # Name for display on the menu.
    engine_class = None     # App engine class
    widget_name = ""        # Class name of app widget
    icon_name = ""          # Icon file name of app widget

@@ -97,24 +97,29 @@
     app_name
+: str
  = %22%22       
@@ -186,16 +186,21 @@
 p_module
+: str
  = %22%22   
@@ -259,16 +259,21 @@
 app_path
+: str
  = %22%22   
@@ -322,24 +322,29 @@
 display_name
+: str
  = %22%22       
@@ -433,24 +433,29 @@
  widget_name
+: str
  = %22%22       
@@ -495,16 +495,21 @@
 con_name
+: str
  = %22%22   

Update app.py