[Python] Is there a single way to store different media types in Telegram bot?

I'm doing different Telegram bots, that can send media to their users.
For video files I used this code to store video uploaded by admin:

caption = event.message.text or ""
file_id = event.message.file.id
data['file_id'] = file_id
data['caption'] = caption
save_data(data)


And this to restore it and send to a user:

data = load_data()
file_id = data['file_id'],
caption = data['caption']
bot.send_video(message.chat.id, file_id ], caption=caption)


To save and restore images I didn't find file_id usage, but this with PKL extension:

async with client.conversation(user_id) as conv:
await conv.send_message("Upload a photo")
photo_event = await conv.get_response()
save_price_pic(photo_event.photo)

def save_price_pic(photo):
with open('price.pkl', 'wb') as file:
pickle.dump(photo, file)


And restore:

def load_price_pic():
with open('price.pkl', 'rb') as file:
return pickle.load(file)
photo = load_price_pic()
client.send_file(user_id,
photo,
caption = "my caption")


Is there any similar method to work with this media? I'd prefer to use file_id in both cases.

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