boto3 list available operations per service

all.py

import boto3
import json


if __name__ == "__main__":
    apis = []
    session = boto3.session.Session(region_name="us-east-1")
    [
        apis.append({service: list(session.client(service)._PY_TO_OP_NAME.values())})
        for service in session.get_available_services()
    ]

    print(json.dumps(apis, indent=4))