docstr: Kivy ~ > 1.9.2 with SDL2 window, uses on_textinput instead of
  on_key_down
code: def kivy_keyboard_on_textinput(self, browser, window, text):
      """Kivy ~ > 1.9.2 with SDL2 window, uses on_textinput instead of
      on_key_down
      """
      modifiers = list()
      keycode = (ord(text), text)
      self.process_key_down(browser, None, keycode, text, modifiers)
  
file_path: SerpentAI/serpent/dashboard/cefbrowser/cefkeyboard.py
imports: from kivy.core.window import Window
  from .cefpython import cefpython
label_desc: Use image node_id 3 for calling the CEFKeyboardManagerSingleton obj's underlying member method code with example usage: obj.kivy_keyboard_on_textinput(browser, window, text) without return types