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Write a python functions that will:

- get json data from this url: https://daga123-tv-api.onrender.com/getPrograms
- Here is a sample of what is returned:

{
   "data":[
      {
         "id":"TF1.fr",
         "name":"TF1",
         "icon":"https://www.teleboy.ch/assets/stations/308/icon320_light.png?v2023_48_0",
         "programs":[...]
      },
      {
         "id":"France2.fr",
         "name":"France 2",
         "icon":"https://www.teleboy.ch/assets/stations/342/icon320_light.png?v2023_48_0",
         "programs":[...]
      },
      ...]
}

And a sample of "programs":

[
            {
               "name":"TFou",
               "start":1710223200,
               "end":1710226500,
               "channel":"TF1.fr",
               "icon":"https://proxymedia.woopic.com/api/v1/images/1870%2Fepg%2Fcontainere29844d933654d77866e49aa5ed2bf2bb7a7414bf6dd26773441c91f43a0d1d1ff5c25b5_F51DAFA904E2D64C2D945C6CFF3856D6.jpg",
               "rating":"Tout public",
               "cat":"Jeunesse",
               "desc":"Une émission jeunesse qui propose les meilleures séries de dessins animés du moment."
            },
            {
               "name":"Bonjour ! La Matinale TF1",
               "start":1710226500,
               "end":1710236100,
               "channel":"TF1.fr",
               "icon":"https://proxymedia.woopic.com/api/v1/images/1870%2Fepg%2Fcontainere29844d933654d77866e49aa5ed2bf2bbb63f341db64d102dc533df2d894f881846a66f0_7EA6E517861B43FA54B0E44C718BC529.jpg",
               "rating":"Tout public",
               "cat":"Magazine",
               "desc":"\"Bonjour ! La Matinale TF1\" est le premier rendez-vous d'information de la journée. Bruce Toussaint fait aussi intervenir les correspondants en direct en région."
            },
            ...
]

what you should do:
save a pretty printed json to a file of this payload that should only include:
- for elements under 'data':
    - keep only the 'id', 'name' and 'programs' key
- for elements under 'program':
    - only keep programs whose start key is after the current time (unix stimestamps)
    - only keep those keys:
        - name
        - start
        - end
        - channel
        - cat
        - desc

- Additionnaly, you should dump the last time this function was run to a file (a a unix timestamp). If the retrieve_tv_program function was called less than 24 hours ago, just return the json as stored in the file, otherwise call the api link I provided, store it on the disk, and return the json

------------ Assistant ------------

Here's a Python function that meets your requirements:

```python
import requests
import json
import time
import os

def retrieve_tv_program():
    filename = 'tv_program.json'
    timestamp_filename = 'last_run_timestamp.txt'
    current_time = time.time()

    # Check if function was called less than 24 hours ago
    if os.path.exists(timestamp_filename):
        with open(timestamp_filename, 'r') as f:
            last_run_timestamp = float(f.read())
            if current_time - last_run_timestamp < 86400: # 24 hours
                with open(filename, 'r') as f:
                    return json.load(f)

    # Call the API
    response = requests.get("https://daga123-tv-api.onrender.com/getPrograms")
    data = response.json()['data']

    filtered_data = []
    for element in data:
        filtered_programs = [program for program in element['programs'] if program['start'] > current_time]
        filtered_programs = [{k: v for k, v in program.items() if k in ['name', 'start', 'end', 'channel', 'cat', 'desc']} for program in filtered_programs]
        filtered_element = {'id': element['id'], 'name': element['name'], 'programs': filtered_programs}
        filtered_data.append(filtered_element)

    result = {'data': filtered_data}

    # Write the result to the file
    with open(filename, 'w') as f:
        json.dump(result, f, indent=4)

    # Update the timestamp
    with open(timestamp_filename, 'w') as f:
        f.write(str(current_time))

    return result

# Call the function and pretty-print the result (for demonstration purposes)
if __name__ == '__main__':
    print(json.dumps(retrieve_tv_program(), indent=4))
```

This script does the following:
- Checks

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