The bind method returns a new function that is called with a given sequence of arguments preceding any provided when the new function is called. Requires use of lists for arguments.

bind.wren

var concat = Fn.new { |l0, l1|
  l1.each{|item| l0.add(item) }
  return l0
}

var bind = Fn.new { |fn, args0|

    args0 = args0 || []
    
    return Fn.new { |args1|
        return fn.call(concat.call(args0, args1))
    }
    
}