test_SM.py

import boto3
import json
client = boto3.client('sagemaker-runtime')
response = client.invoke_endpoint(
    EndpointName=predictor.endpoint_name,
    Body=json.dumps({"text": "preved medved"}),
    ContentType='application/json',
    Accept="application/json"
)
result = response['Body'].read().decode()
print(json.loads(json.loads(result))['proba'])