code: def sign_in(self, email, password):
          
          self.email = email
          self.login_password = password
          if self.is_element_present(*self._next_button_locator):
              self.wait.until(expected.visibility_of_element_located(
                  self._next_button_locator))
              self.click_next()
          self.click_sign_in()
docs: Signs in using the specified email address and password.