ros2 argument in lauch.py

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I have a launch file with ROS1 as below. I want to wirte it with ros2 launch.py. How to write it with ros2 ？

<launch>
    <arg name="camera_type_tel" default="astrapro" doc="camera type [astrapro, astra,d435]"/>
    <include file="$(find camera_driver_transfer)/launch/$(arg camera_type_tel).launch">
    </include>
</launch>

I want to run the camer launch file with argument , not use the string(d435_launch.py). I wirte it as below: but when I run it ,it is error! how can I do ?

import os
from ament_index_python.packages import get_package_share_directory
from launch import LaunchDescription
from launch.actions import (DeclareLaunchArgument, GroupAction,
                            IncludeLaunchDescription)
from launch.launch_description_sources import PythonLaunchDescriptionSource
from launch.substitutions import LaunchConfiguration

def generate_launch_description():
    # Get the launch directory
    camera_driver_transfer_dir = get_package_share_directory('camera_driver_transfer')
    camera_type_tel = LaunchConfiguration('camera_type_tel')

    declare_camera_type_tel = DeclareLaunchArgument(
        'camera_type_tel', 
        default_value='d435',
        choices=['d435', 'astra_pro'],
        description='camera type')        
    camera_type_launch = camera_type_tel+'_launch.py'
    # Specify the actions
    camera_group = GroupAction([
        IncludeLaunchDescription(
            PythonLaunchDescriptionSource(os.path.join(camera_driver_transfer_dir, 'launch',  camera_type_launch))) #this is error                
            #PythonLaunchDescriptionSource(os.path.join(camera_driver_transfer_dir, 'launch',  'd435_launch.py'))) #this is ok
    ])

    # Create the launch description and populate
    ld = LaunchDescription()
    ld.add_action(declare_camera_type_tel)
    ld.add_action(camera_group)

    return ld