Не могу понять как обратиться к атрибутам функции класса в другом скрипте

from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_ErrorWindow(object):
    def setupUi(self, ErrorWindow):
        ErrorWindow.setObjectName("ErrorWindow")
        ErrorWindow.resize(321, 265)
        self.centralwidget = QtWidgets.QWidget(ErrorWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.textBrowser = QtWidgets.QTextBrowser(self.centralwidget)
        self.textBrowser.setGeometry(QtCore.QRect(30, 10, 256, 192))
        self.textBrowser.setObjectName("textBrowser")
        ErrorWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(ErrorWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 321, 26))
        self.menubar.setObjectName("menubar")
        ErrorWindow.setMenuBar(self.menubar)
        self.statusbar = QtWidgets.QStatusBar(ErrorWindow)
        self.statusbar.setObjectName("statusbar")
        ErrorWindow.setStatusBar(self.statusbar)
 
        self.retranslateUi(ErrorWindow)
        QtCore.QMetaObject.connectSlotsByName(ErrorWindow)
    def retranslateUi(self, ErrorWindow):
        _translate = QtCore.QCoreApplication.translate
        ErrorWindow.setWindowTitle(_translate("ErrorWindow", "LogWindow"))
 
 
if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    ErrorWindow = QtWidgets.QMainWindow()
    ui = Ui_ErrorWindow()
    ui.setupUi(ErrorWindow)
    ErrorWindow.show()
    sys.exit(app.exec_())

import psycopg2 as pg
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtGui import QIcon
from config import host, user, password, db_name
import sys
sys.path.append(r"C:\Users\Nike\Desktop\Scripts\Python\pgsql\gui\Error")
import error
 
def add_value_request_client(self, line_edit, line_edit_2, line_edit_3, line_edit_4, line_edit_5):
    rows = "Asd"
    connection = pg.connect(host=host, dbname=db_name, user=user, password=password)
    
    connection.autocommit = True
 
    try:
        with connection.cursor() as cursor:
            cursor.execute(
                f"insert into client(id_client, name, surname, adres, value_contact) values({line_edit.text()}, \'{line_edit_2.text()}\', \'{line_edit_3.text()}\', \'{line_edit_4.text()}\', \'{line_edit_5.text()}\')"
            )
            rows = cursor.fetchall()
            
            for row in rows:
                print(f"{row}")
    except (Exception, pg.DatabaseError) as errors:
        if str(errors) == "no results to fetch":
            print("Запрос выполнен")
        else:
            print(errors)
    finally:
        #self.mixmax = error.QtWidgets.QTextBrowser()
        #window = error.Ui_ErrorWindow()
        #window.setupUi(self.mixmax)
        #self.mixmax.setPlainText("Привет")
#хотябы добавить в finally мне алгоритм обращения понять к TextBrowser
 
 
        self.send_window = error.QtWidgets.QMainWindow()
        ui = error.Ui_ErrorWindow()
        ui.setupUi(self.send_window)
        self.send_window.show()
        print("Соединение закрыто")
        connection.close()

self.send_window = error.QtWidgets.QMainWindow()
ui = error.Ui_ErrorWindow()
ui.setupUi(self.send_window)
ui.textBrowser.setText('Привет')  # Установка textBrowser после setupUi
self.send_window.show()