Class FunctionCallData

src/mcp_cli/chat/models.py:45–69

Function call within a tool call (OpenAI format). Mutable counterpart to chuk_llm.core.models.FunctionCall (frozen). Must remain mutable because ToolCallData.merge_chunk() accumulates streaming chunks by mutating name/arguments in place.

class FunctionCallData(BaseModel):
    """Function call within a tool call (OpenAI format).

    Mutable counterpart to chuk_llm.core.models.FunctionCall (frozen).
    Must remain mutable because ToolCallData.merge_chunk() accumulates
    streaming chunks by mutating name/arguments in place.
    """

    name: str = Field(description="Function/tool name")
    arguments: str = Field(description="JSON string of arguments")

    model_config = {"frozen": False}

    def get_arguments_dict(self) -> dict[str, Any]:
        """Parse arguments JSON string to dict."""
        try:
            result = json.loads(self.arguments)
            return dict(result) if isinstance(result, dict) else {}
        except json.JSONDecodeError:
            return {}

    @classmethod
    def from_dict_args(cls, name: str, arguments: dict[str, Any]) -> "FunctionCallData":
        """Create FunctionCallData from dict arguments."""
        return cls(name=name, arguments=json.dumps(arguments))


class ToolCallData(BaseModel):