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: bananas.rb
    path of file: ./repos/standard/test/fixture/plugins/project/lib/banana
    
    the code of the file until where you have to start completion: module RuboCop
  module Cop
    module Bananas
      class BananasOnly < Cop
        def on_lvasgn(n
    
        def on_lvasgn(node)
          # cracks me up that we have to disable this cop inside itself
          name, = *node # standard:disable Bananas/BananasOnly

          if name != :bananas
            bananas = Array(cop_config["PreferredBananaReplacement"] || "olives").join(" or ")
            add_offense(node, message: "Bananas only! No #{bananas}.")
          end