# FunctionObject


## Fields

| Field                                                                                                                                                                                                                                                                                                                                                  | Type                                                                                                                                                                                                                                                                                                                                                   | Required                                                                                                                                                                                                                                                                                                                                               | Description                                                                                                                                                                                                                                                                                                                                            |
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| `Description`                                                                                                                                                                                                                                                                                                                                          | **string*                                                                                                                                                                                                                                                                                                                                              | :heavy_minus_sign:                                                                                                                                                                                                                                                                                                                                     | A description of what the function does, used by the model to choose when and how to call the function.                                                                                                                                                                                                                                                |
| `Name`                                                                                                                                                                                                                                                                                                                                                 | *string*                                                                                                                                                                                                                                                                                                                                               | :heavy_check_mark:                                                                                                                                                                                                                                                                                                                                     | The name of the function to be called. Must be a-z, A-Z, 0-9, or contain underscores and dashes, with a maximum length of 64.                                                                                                                                                                                                                          |
| `Parameters`                                                                                                                                                                                                                                                                                                                                           | map[string]*any*                                                                                                                                                                                                                                                                                                                                       | :heavy_minus_sign:                                                                                                                                                                                                                                                                                                                                     | The parameters the functions accepts, described as a JSON Schema object. See the [guide](/docs/guides/text-generation/function-calling) for examples, and the [JSON Schema reference](https://json-schema.org/understanding-json-schema/) for documentation about the format. <br/><br/>Omitting `parameters` defines a function with an empty parameter list. |