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: uninstall_command.rb
    path of file: ./repos/kontena/cli/lib/kontena/cli/plugins
    
    the code of the file until where you have to start completion: require 'kontena/plugin_manager'

module Kontena::Cli::Plugins
  class UninstallCommand < Kontena::Command
    include Kontena::Util
    inclu
    
    def execute
      name_list.each do |name|
        exit_with_error "Plugin #{name} has not been installed" unless plugin_installed?(name)
        spinner "Uninstalling plugin #{pastel.cyan(name)}" do
          plugin_uninstaller(name).uninstall
        end
      end
    end