Python: Cannot import native functions to the Kernel that have more than one parameter.  #624

@sk_function(description="List the contents of a directory", name="listDirectory")
    async def list_directory(
        self, input_dir: str, depth: int = 0, parent_idx: str = ""
    ) -> str:
        """
        List the contents of a directory

        Example:
            {{file.listDirectory $path }}
        Args:
            input_dir -- The path to the directory to list

        Returns:
            A representation of the directory structure
        """

        assert os.path.exists(input_dir), f"Directory {input_dir} does not exist"

        tree_str = ""
        if not os.path.isdir(input_dir):
            raise ValueError(f"{input_dir} is not a directory")

        for idx, entry in enumerate(os.listdir(input_dir)):
            path = os.path.join(input_dir, entry)
            current_idx = f"{parent_idx}.{idx}" if parent_idx else f"{idx}"
            if os.path.isfile(path):
                tree_str += f"F{current_idx}:{entry}|"
            elif os.path.isdir(path):
                tree_str += f"D{current_idx}:{entry}|"
                tree_str += self.list_directory(path, depth + 1, current_idx)

        return tree_str[:-1]