> ## Documentation Index
> Fetch the complete documentation index at: https://openrouter-d02e98a0-mintlify-7021d5f4.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# ToolDefinitionJSONFunction - Python SDK

> ToolDefinitionJSONFunction method reference

<Warning>
  The Python SDK and docs are currently in beta.
  Report issues on [GitHub](https://github.com/OpenRouterTeam/python-sdk/issues).
</Warning>

## Fields

| Field         | Type                      | Required             | Description |
| ------------- | ------------------------- | -------------------- | ----------- |
| `name`        | *str*                     | :heavy\_check\_mark: | N/A         |
| `description` | *Optional\[str]*          | :heavy\_minus\_sign: | N/A         |
| `parameters`  | Dict\[str, *Any*]         | :heavy\_minus\_sign: | N/A         |
| `strict`      | *OptionalNullable\[bool]* | :heavy\_minus\_sign: | N/A         |