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: list_ssh_keys.rb
    path of file: ./repos/tugboat/lib/tugboat/middleware
    
    the code of the file until where you have to start completion: module Tugboat
  module Middleware
    class ListSSHKeys < Base
      def call(env)
        ocean = env['barge']
        ssh_keys = ocean.key.all.ssh_keys

        say 'SSH Keys:'
        ssh_keys.each do |key|
          say "Name:
    
      def call(env)
        ocean = env['barge']
        ssh_keys = ocean.key.all.ssh_keys

        say 'SSH Keys:'
        ssh_keys.each do |key|
          say "Name: #{key.name}, (id: #{key.id}), fingerprint: #{key.fingerprint}"
        end

        @app.call(env)
      end