```python
from typing import Any, Dict
from openai.api import v1
import os
import aiohttp
import asyncio

class PragmaticProgrammerAGIAgent:
    def __init__(self, api_key: str):
        self.api = v1.Completions(api_key=api_key)
        self.session = aiohttp.ClientSession()

    async def close(self):
        await self.session.close()
        self.api = None

    async def create_system(self, definition: Dict[str, Any]) -> str:
        prompt = f"Create a advanced system following this definition: {definition}"
        code = await self.generate_code(prompt)
        return code

    async def generate_code(self, prompt: str) -> str:
        response = await self.api.create(prompt=prompt, model="text-davinci-002", max_tokens=1000)
        code = response["choices"][0]["text"].strip()
        return code

class PragmaticStarterKit:
    def __init__(self, agent: PragmaticProgrammerAGIAgent):
        self.agent = agent

    async def create_pragmatic_starter_kit(self) -> str:
        definition = {
            'name': 'Pragmatic Starter Kit',
            'description': 'A pragmatic starter kit incorporating DDD, Docker Compose, GitHub Actions, and pytest',
            'technologies': ['DDD', 'Docker Compose', 'GitHub Actions', 'pytest']
        }
        code = await self.agent.create_system(definition)
        return code

async def main():
    api_key = os.getenv('OPENAI_API_KEY')
    agent = PragmaticProgrammerAGIAgent(api_key)
    kit = PragmaticStarterKit(agent)
    system_code = await kit.create_pragmatic_starter_kit()
    with open('PragmaticStarterKit.py', 'w') as file:
        file.write(system_code)
    await agent.close()

if __name__ == "__main__":
    loop = asyncio.get_event_loop()
    loop.run_until_complete(main())
```
This program uses the OpenAI GPT-3 API via the `create_system` function to generate Python code for a system defined by the user. The system is defined in the `definition` dictionary of the `create_pragmatic_starter_kit` function in the `PragmaticStarterKit` class. The generated code is then written to a file named 'PragmaticStarterKit.py'.
The OpenAI API is wrapped inside the `PragmaticProgrammerAGIAgent` class to make the AI code generation reusable, and simple to initialize with an OpenAI API key. The OpenAI API session will automatically close when the main function is finished.