I think I know what your asking, and is that to load a class from a json file?
You can use the json set up like this to load classes.
My class file will be like this:
class Player():
    health = 0
    attack = 0
    defense = 0
My json file will be like this:
{"health": 10, "attack": 5, "defense": 3}
My load file will be like this:
import classes as c
import json
def load()
    with open('myFile.json', 'r') as pfile:
        jp = json.load(pfile)
        c.Player.health = jp['health']
        c.Player.attack = jp['attack']
        c.Player.defense = jp['defense']
This allows you to make the class have the same stats as the json file says.
Hope this helps.
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solved Import class atributes with json [closed]