Function call_dict_function 

pub fn call_dict_function<Args, Ret>(
    dict: &str,
    func: &str,
    args: Args,
) -> Result<Ret, Error>
where
    Args: Into<Array>,
    Ret: FromObject,

Binding to nvim_call_dict_function().

Calls a VimL dictionary function with the given arguments, returning the result of the funtion call.