Initial Agent Configuration and Tool Definition

You are setting up an OpenAI Assistant for tax and legal compliance. Define an initial Assistant named 'GlobalTaxAdvisor'. Create a custom tool, 'query_legal_database', that takes 'country' and 'keywords' as arguments and returns relevant legal document snippets. Provide the Python code for defining this tool and integrating it with your OpenAI Assistant.

```python
from openai import OpenAI
client = OpenAI()

# Define the tool's function
def query_legal_database(country: str, keywords: str) -> str:
    # This will be replaced by actual Pinecone search
    if country == "Germany" and "corporate tax" in keywords:
        return "According to German Corporate Tax Act §23, the corporate tax rate is 15%."
    return "No relevant information found for the query."

# Add tool to Assistant (conceptual)
# assistant = client.beta.assistants.create(
#     name="GlobalTaxAdvisor",
#     instructions="You are an expert tax and legal advisor...",
#     model="gpt-4o",
#     tools=[{"type": "function", "function": query_legal_database}]
# )
```