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import json
from datetime import date
from datetime import datetime
# Create your tests here.
class JsonCustomEncoder(json.JSONEncoder):
    def default(self, field):
        if isinstance(field, datetime):
            return field.strftime('%Y-%m-%d %H')
        elif isinstance(field, date):
            return field.strftime('%Y-%m-%d')
        elif isinstance(field, Response):
            return field.__dict__
        else:
            return json.JSONEncoder.default(self, field)
class Response:
    def __init__(self):
        self.status = True
        self.data = 'fefefefefefe'
data = {
    'k1':123,
    'k2':datetime.now(),
    'k3':Response()
}
ds = json.dumps(data,cls=JsonCustomEncoder)
print(ds)