# RealtimeBetaResponseCreateParamsToolChoice
## Enum Variants
| ToolChoiceFunction | How the model chooses tools. Provide one of the string modes or force a specific function/MCP tool. |
| ToolChoiceMcp | How the model chooses tools. Provide one of the string modes or force a specific function/MCP tool. |
| ToolChoiceOptions | How the model chooses tools. Provide one of the string modes or force a specific function/MCP tool. |
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