How to take text from textfield kivy md?

Question

Python

I made a textfield using kivymd but I don't know how to use what can be written there. For example, make a button that will use the text from the textfield

from kivy.lang import Builder
from kivymd.app import MDApp
from kivy.uix.screenmanager import ScreenManager, Screen
from kivymd.uix.textfield import MDTextField
from kivy.core.window import Window
Window.clearcolor = (23/255, 23/255, 23/255, 1)
Window.title = "Number"

KV = '''
<Number>:
MDTextField:
  id: TakenNum
  size_hint_x: None
  width: "300dp"
  hint_text: "Enter number (+373, no space)"
  max_text_length: 12
  line_color_normal: 0, 0, 0, 0.5
  line_color_focus: 0, 0, 0, 1
  pos_hint: {"center_x": .5, "center_y": .8}
'''

class SmsBomb(MDApp):
    def build(self):
        return Builder.load_string(KV)


SmsBomb().run()