Use safe field names and alias to handle `_` parameter names

        ...

def safe_field_name(name: str) -> str:

    if name.startswith("_"):

        return f"X{name}"

    return name

def dynamic_model_information_from_py_type(

    param_model: ParamModel, py_type: Type, requires_value: Optional[bool] = None, validators=None

):

    name = param_model.name

    name = safe_field_name(param_model.name)

    if requires_value is None:

        requires_value = param_model.request_requires_value

    initialize = ... if requires_value else None

    return DynamicModelInformation(

        name,

        (py_type, initialize),

        (py_type, Field(initialize, alias=param_model.name if param_model.name != name else None)),

        validators,

    )

    for input_model in tool_parameter_models:

        input_model = to_simple_model(input_model)

        input_name = input_model.name

        pydantic_request_template = input_model.pydantic_template(state_representation)

        input_name = pydantic_request_template.name

        kwd[input_name] = pydantic_request_template.definition

        input_validators = pydantic_request_template.validators

        for validator_name, validator_callable in input_validators.items():