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right now I do this before I load cf:
```
import yaml

def process_yaml():
    with open("config.yaml") as file:
        return yaml.safe_load(file)

config_data = process_yaml()
openai_api_key = config_data["openai"]["api_key"]
anthropic_api_key = config_data["anthropic"]["api_key"]

import os
os.environ["OPENAI_API_KEY"] = openai_api_key
os.environ["ANTHROPIC_API_KEY"] = anthropic_api_key
os.environ["CONTROLFLOW_DEFAULT_LLM"] = "anthropic/claude-3-5-sonnet-20240620"```