def _get_declaration(self) -> types.FunctionDeclaration:
    """Build the function declaration for the tool."""
    function_declaration = _automatic_function_calling_util.build_function_declaration_for_params_for_crewai(
        False,
        self.name,
        self.description,
        self.func,
        self.tool.args_schema.model_json_schema(),
    )
    return function_declaration
Build the function declaration for the tool.
src/google/adk/tools/crewai_tool.py