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instructor/docs/concepts/patching.md
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Jason Liu 359c5f9295 Add multiple modalities: tools, functions, json_mode (#218)
Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
2023-11-25 13:56:52 -05:00

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# Patching
Instructor enhances client functionality with three new keywords for backwards compatibility. This allows use of the enhanced client as usual, with structured output benefits.
- `response_model`: Defines the response type for `chat.completions.create`.
- `max_retries`: Determines retry attempts for failed `chat.completions.create` validations.
- `validation_context`: Provides extra context to the validation process.
There are three methods for structured output:
1. **Function Calling**: The primary method. Use this for stability and testing.
2. **Tool Calling**: Useful in specific scenarios; lacks the reasking feature of OpenAI's tool calling API.
3. **JSON Mode**: Offers closer adherence to JSON but with more potential validation errors. Suitable for specific non-function calling clients.
## Function Calling
```python
from openai import OpenAI
import instructor
client = instructor.patch(OpenAI())
```
## Tool Calling
```python
import instructor
from instructor import Mode
client = instructor.patch(OpenAI(), mode=Mode.TOOL_CALL)
```
## JSON Mode
```python
import instructor
from instructor import Mode
from openai import OpenAI
client = instructor.patch(OpenAI(), mode=Mode.JSON)
```
### Schema Integration
In JSON Mode, the schema is part of the system message:
```python
import instructor
from openai import OpenAI
client = instructor.patch(OpenAI())
response = client.chat.completions.create(
model="gpt-3.5-turbo-1106",
response_format={"type": "json_object"},
messages=[
{
"role": "system",
"content": f"Match your response to this json_schema: \n{UserExtract.model_json_schema()['properties']}",
},
{
"role": "user",
"content": "Extract jason is 25 years old",
},
],
)
user = UserExtract.from_response(response, mode=Mode.JSON)
assert user.name.lower() == "jason"
assert user.age == 25
```