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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def session_preparation(self):
 """ Prepare the session after the connection has been established. Extra time to read HP banners. """

        delay_factor = self.select_delay_factor(delay_factor=0)
        i = 1
        while i <= 4:
            # Comware can have a banner that prompts you to continue
            # 'Press Y or ENTER to continue, N to exit.'
            time.sleep(0.5 * delay_factor)
            self.write_channel("\n")
            i += 1

        time.sleep(0.3 * delay_factor)
        self.clear_buffer()
        self._test_channel_read(pattern=r"[>\]]")
        self.set_base_prompt()
        command = self.RETURN + "screen-length disable"
        self.disable_paging(command=command)
        # Clear the read buffer
        time.sleep(0.3 * self.global_delay_factor)
        self.clear_buffer()