You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: variadic.rb
    path of file: ./repos/truffleruby/lib/truffle/ffi
    
    the code of the file until where you have to start completion: #
# Copyright (C) 2008, 2009 Wayne Meissner
# Copyright (C) 2009 Luc Heinrich
#
# This file is pa
    
    def call(*args, &block)
      param_types = Array.new(@fixed)
      param_values = Array.new
      @fixed.each_with_index do |t, i|
        param_values << args[i]
      end
      i = @fixed.length
      while i < args.length
        param_types << FFI.find_type(args[i], @type_map)
        param_values << args[i + 1]
        i += 2
      end