Как вызвать функцию при нажатии кнопки?

bot_token = '1987426702:AAFD-ddrgregETt4kZmRE9mu8M2pRqsJ4'
chatID = '724894068'
 
def telegram_bot_sendtext(bot_token, chatID, message):
    url = f'https://api.telegram.org/bot{bot_token}/sendMessage?chat_id={chatID}&parse_mode=Markdown&text={message}'
    response = requests.get(url)
    return response.json()
 
response = telegram_bot_sendtext(bot_token, chatID, "message")

from PyQt5 import QtCore, QtGui, QtWidgets
import requests
 
class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(800, 600)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.pushButton = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton.setGeometry(QtCore.QRect(200, 170, 271, 151))
        self.pushButton.setObjectName("pushButton")
 
        MainWindow.setCentralWidget(self.centralwidget)
 
        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)
 
    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
        self.pushButton.setText(_translate("MainWindow", "Кнопка"))
 
 
if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    MainWindow = QtWidgets.QMainWindow()
    ui = Ui_MainWindow()
    ui.setupUi(MainWindow)
    MainWindow.show()
    sys.exit(app.exec_())

self.pushButton.clicked.connect(telegram_bot_sendtext)