Update rubopcop (#227)

* Update rubopcop [WIP]

* Further rubocop fixes

* Fix rubocop-rails cops

* Fix spec

* Disable rubocop suggestions

* Run rubocop in github actions rather than in codeclimate

lib/tasks/telegram-bot.rake

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 namespace :telegram do
   namespace :bot do
     desc 'Run poller. It broadcasts Rails.logger to STDOUT in dev like `rails s` do. ' \
@@ -6,14 +8,14 @@ namespace :telegram do
       ENV['BOT_POLLER_MODE'] = 'true'
       Rake::Task['environment'].invoke
       if ENV.fetch('LOG_TO_STDOUT') { Rails.env.development? }.present?
-        console = ActiveSupport::Logger.new(STDERR)
-        if ::Rails.logger.respond_to?(:broadcast_to)
-          ::Rails.logger.broadcast_to(console)
+        console = ActiveSupport::Logger.new($stderr)
+        if Rails.logger.respond_to?(:broadcast_to)
+          Rails.logger.broadcast_to(console)
         else
           Rails.logger.extend ActiveSupport::Logger.broadcast console
         end
       end
-      Telegram::Bot::UpdatesPoller.start(ENV['BOT'].try!(:to_sym) || :default)
+      Telegram::Bot::UpdatesPoller.start(ENV['BOT']&.to_sym || :default)
     end
 
     desc 'Set webhook urls for all bots'

lib/telegram/bot.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'telegram/bot/config_methods'
 
 module Telegram
@@ -12,15 +14,6 @@ module Telegram
     # Raised for valid telegram response with 404 status code.
     class NotFound < Error; end
 
-    module_function
-
-    def deprecation_0_16
-      @deprecation ||= begin
-        require 'active_support/deprecation'
-        ActiveSupport::Deprecation.new('0.16', 'Telegram::Bot')
-      end
-    end
-
     autoload :Async,              'telegram/bot/async'
     autoload :Client,             'telegram/bot/client'
     autoload :ClientStub,         'telegram/bot/client_stub'
@@ -30,6 +23,7 @@ module Telegram
     autoload :Tasks,              'telegram/bot/tasks'
     autoload :UpdatesController,  'telegram/bot/updates_controller'
     autoload :UpdatesPoller,      'telegram/bot/updates_poller'
+    autoload :VERSION,            'telegram/bot/version'
   end
 end
 

lib/telegram/bot/async.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Telegram
   module Bot
     # Telegram clients can perform requests in async way with
@@ -128,7 +130,7 @@ module Telegram
       #
       # If no block is given returns previously set value or the global one,
       # set by #async=.
-      def async(val = true)
+      def async(val = true) # rubocop:disable Style/OptionalBooleanParameter
         thread_key = object_id
         thread_store = Async.thread_store
         return thread_store.fetch(thread_key) { @async } unless block_given?
@@ -137,7 +139,7 @@ module Telegram
           thread_store[thread_key] = self.class.prepare_async_val(val)
           yield
         ensure
-          if MISSING_VALUE == old_val
+          if old_val == MISSING_VALUE
             thread_store.delete(thread_key)
           else
             thread_store[thread_key] = old_val

lib/telegram/bot/client.rb

@@ -1,11 +1,13 @@
+# frozen_string_literal: true
+
 require 'active_support/core_ext/hash/keys'
 require 'httpclient'
 
 module Telegram
   module Bot
     class Client
-      SERVER = 'https://api.telegram.org'.freeze
-      URL_TEMPLATE = '%<server>s/bot%<token>s/'.freeze
+      SERVER = 'https://api.telegram.org'
+      URL_TEMPLATE = '%<server>s/bot%<token>s/'
 
       autoload :RequestBodyFormatter, 'telegram/bot/client/request_body_formatter'
       autoload :TypedResponse, 'telegram/bot/client/typed_response'
@@ -41,7 +43,7 @@ module Telegram
         end
 
         def error_for_response(response)
-          result = JSON.parse(response.body) rescue nil # rubocop:disable RescueModifier
+          result = JSON.parse(response.body) rescue nil # rubocop:disable Style/RescueModifier
           return Error.new(response.reason) unless result
           message = result['description'] || '-'
           # This errors are raised only for valid responses from Telegram

lib/telegram/bot/client/api_helper.rb

@@ -1,10 +1,12 @@
+# frozen_string_literal: true
+
 require 'active_support/core_ext/string/inflections'
 
 module Telegram
   module Bot
     class Client
       module ApiHelper
-        METHODS_LIST_FILE = File.expand_path('../api_methods.txt', __FILE__)
+        METHODS_LIST_FILE = File.expand_path('api_methods.txt', __dir__)
 
         class << self
           def methods_list(file = METHODS_LIST_FILE)

lib/telegram/bot/client/request_body_formatter.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'json'
 
 module Telegram

lib/telegram/bot/client/typed_response.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'telegram/bot/client/api_helper'
 require 'active_support/core_ext/string/inflections'
 

lib/telegram/bot/client_stub.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Telegram
   module Bot
     # Stubbed client for tests. Saves all requests into #requests hash.
@@ -17,7 +19,7 @@ module Telegram
       class << self
         # Any call to Client.new will return ClientStub instance when `enabled` is true.
         # Can be used with a block.
-        def stub_all!(enabled = true)
+        def stub_all!(enabled = true) # rubocop:disable Style/OptionalBooleanParameter
           Client.extend(StubbedConstructor) unless Client < StubbedConstructor
           return @_stub_all = enabled unless block_given?
           begin
@@ -34,7 +36,7 @@ module Telegram
         end
       end
 
-      def initialize(token = nil, username = nil, **options)
+      def initialize(token = nil, username = nil, **options) # rubocop:disable Lint/MissingSuper
         @token = token || options[:token]
         @username = username || options[:username] || token
         reset

lib/telegram/bot/config_methods.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'active_support/core_ext/hash/keys'
 require 'active_support/core_ext/hash/indifferent_access'
 
@@ -44,7 +46,7 @@ module Telegram
       # from `secrets.yml` merging `telegram['bot']` at `:default` key.
       #
       # Can be overwritten with .bots_config=
-      def bots_config
+      def bots_config # rubocop:disable Metrics/PerceivedComplexity
         @bots_config ||=
           if defined?(Rails.application)
             app = Rails.application

lib/telegram/bot/debug_client.rb

@@ -1,7 +1,9 @@
+# frozen_string_literal: true
+
 module Telegram
   module Bot
     module DebugClient
-      def debug!(dev = STDOUT)
+      def debug!(dev = $stdout)
         if block_given?
           begin
             old_dev = client.debug_dev

lib/telegram/bot/middleware.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'active_support/concern'
 require 'active_support/core_ext/hash/indifferent_access'
 require 'active_support/json'
@@ -21,7 +23,7 @@ module Telegram
       end
 
       def inspect
-        "#<#{self.class.name}(#{controller.try!(:name)})>"
+        "#<#{self.class.name}(#{controller&.name})>"
       end
     end
   end

lib/telegram/bot/railtie.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'telegram/bot/routes_helper'
 
 module Telegram
@@ -10,7 +12,7 @@ module Telegram
       end
 
       config.before_initialize do
-        ::ActionDispatch::Routing::Mapper.send(:include, RoutesHelper)
+        ::ActionDispatch::Routing::Mapper.include RoutesHelper
       end
 
       initializer 'telegram.bot.updates_controller.set_config' do |app|

lib/telegram/bot/routes_helper.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'base64'
 require 'openssl'
 

lib/telegram/bot/rspec.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Telegram
   module Bot
     module RSpec

lib/telegram/bot/rspec/callback_query_helpers.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'telegram/bot/rspec'
 require 'telegram/bot/rspec/message_helpers'
 

lib/telegram/bot/rspec/client_matchers.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Telegram
   module Bot
     module RSpec
@@ -61,14 +63,14 @@ module Telegram
 
           attr_reader :performed_requests, :description
 
-          def initialize(bot, action, description: nil)
+          def initialize(bot, action, description: nil) # rubocop:disable Lint/MissingSuper
             @bot = bot
             @action = action
             @description = description || "make #{action} telegram request"
             exactly(1)
           end
 
-          def matches?(proc) # rubocop:disable AbcSize
+          def matches?(proc) # rubocop:disable Metrics/AbcSize
             raise ArgumentError, 'matcher only supports block expectations' unless proc.is_a?(Proc)
             original_requests_count = bot.requests[action].count
             proc.call

lib/telegram/bot/rspec/integration/poller.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'telegram/bot/rspec/integration/shared'
 
 RSpec.shared_context 'telegram/bot/integration/poller' do

lib/telegram/bot/rspec/integration/rack.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'telegram/bot/rspec/integration/shared'
 require 'rack/test'
 

lib/telegram/bot/rspec/integration/rails.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'telegram/bot/rspec/integration/shared'
 
 RSpec.shared_context 'telegram/bot/integration/rails', type: :request do

lib/telegram/bot/rspec/integration/shared.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'active_support/json'
 require 'telegram/bot'
 require 'telegram/bot/rspec/message_helpers'
@@ -10,5 +12,5 @@ RSpec.shared_context 'telegram/bot/integration/shared' do
 
   let(:bot) { Telegram.bot }
   let(:clear_session?) { described_class.respond_to?(:session_store) }
-  before { described_class.session_store.try!(:clear) if clear_session? }
+  before { described_class.session_store&.clear if clear_session? }
 end

lib/telegram/bot/rspec/message_helpers.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Shared helpers for testing message updates.
 RSpec.shared_context 'telegram/bot/message_helpers' do
   let(:default_message_options) { {from: from, chat: chat} }

lib/telegram/bot/tasks.rb

@@ -7,7 +7,7 @@ module Telegram
 
       def set_webhook
         routes = Rails.application.routes.url_helpers
-        cert_file = ENV['CERT']
+        cert_file = ENV.fetch('CERT', nil)
         cert = File.open(cert_file) if cert_file
         each_bot do |key, bot|
           route_name = RoutesHelper.route_name_for_bot(bot)
@@ -16,7 +16,7 @@ module Telegram
           bot.set_webhook(
             url: url,
             certificate: cert,
-            ip_address: ENV['IP_ADDRESS'],
+            ip_address: ENV.fetch('IP_ADDRESS', nil),
             drop_pending_updates: drop_pending_updates,
           )
         end
@@ -50,13 +50,13 @@ module Telegram
       end
 
       def each_bot(&block)
-        id = ENV['BOT'].try!(:to_sym)
+        id = ENV['BOT']&.to_sym
         bots = id ? {id => Client.by_id(id)} : Telegram.bots
         bots.each { |key, bot| bot.async(false) { block[key, bot] } }
       end
 
       def drop_pending_updates
-        ENV['DROP_PENDING_UPDATES'].try!(:downcase) == 'true'
+        ENV['DROP_PENDING_UPDATES']&.downcase == 'true'
       end
     end
   end

lib/telegram/bot/updates_controller.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'abstract_controller'
 require 'active_support/core_ext/string/inflections'
 require 'active_support/callbacks'
@@ -47,7 +49,7 @@ module Telegram
     #     ControllerClass.new(bot, from: telegram_user, chat: telegram_chat).
     #       process(:help, *args)
     #
-    class UpdatesController < AbstractController::Base # rubocop:disable ClassLength
+    class UpdatesController < AbstractController::Base # rubocop:disable Metrics/ClassLength
       abstract!
 
       %w[
@@ -69,12 +71,12 @@ module Telegram
       include AbstractController::Callbacks
       # Redefine callbacks with default terminator.
       if ActiveSupport::VERSION::MAJOR >= 5
-        define_callbacks  :process_action,
-                          skip_after_callbacks_if_terminated: true
+        define_callbacks :process_action,
+          skip_after_callbacks_if_terminated: true
       else
-        define_callbacks  :process_action,
-                          terminator: ->(_, result) { result == false },
-                          skip_after_callbacks_if_terminated: true
+        define_callbacks :process_action,
+          terminator: ->(_, result) { result == false },
+          skip_after_callbacks_if_terminated: true
       end
 
       include Commands
@@ -126,14 +128,14 @@ module Telegram
       # that update is nil.
       # ActionDispatch::Request object is passed in `webhook_request` when bot running
       # in webhook mode.
-      def initialize(bot = nil, update = nil, webhook_request = nil)
+      def initialize(bot = nil, update = nil, webhook_request = nil) # rubocop:disable Lint/MissingSuper
         if update.is_a?(Hash) && (update.key?(:from) || update.key?(:chat))
           options = update
           update = nil
         end
         @_bot = bot
         @_update = update
-        @_chat, @_from = options && options.values_at(:chat, :from)
+        @_chat, @_from = options&.values_at(:chat, :from)
         @_payload, @_payload_type = self.class.payload_from_update(update)
         @_webhook_request = webhook_request
       end
@@ -142,13 +144,13 @@ module Telegram
       # when there is no such field in payload.
       #
       # Can be overriden with `chat` option for #initialize.
-      def chat
-        @_chat ||=
+      def chat # rubocop:disable Metrics/PerceivedComplexity
+        @_chat ||= # rubocop:disable Naming/MemoizedInstanceVariableName
           if payload
             if payload.is_a?(Hash)
-              payload['chat'] || payload['message'] && payload['message']['chat']
+              payload['chat'] || (payload['message'] && payload['message']['chat'])
             else
-              payload.try(:chat) || payload.try(:message).try!(:chat)
+              payload.try(:chat) || payload.try(:message)&.chat
             end
           end
       end
@@ -156,7 +158,8 @@ module Telegram
       # Accessor to `'from'` field of payload. Can be overriden with `from` option
       # for #initialize.
       def from
-        @_from ||= payload.is_a?(Hash) ? payload['from'] : payload.try(:from)
+        @_from ||= # rubocop:disable Naming/MemoizedInstanceVariableName
+          payload.is_a?(Hash) ? payload['from'] : payload.try(:from)
       end
 
       # Processes current update.
@@ -221,7 +224,7 @@ module Telegram
       # Silently ignore unsupported messages to not fail when user crafts
       # an update with usupported command, callback query context, etc.
       def action_missing(action, *_args)
-        logger.debug { "The action '#{action}' is not defined in #{self.class.name}" } if logger
+        logger&.debug { "The action '#{action}' is not defined in #{self.class.name}" }
         nil
       end
 

lib/telegram/bot/updates_controller/callback_query_context.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Telegram
   module Bot
     class UpdatesController

lib/telegram/bot/updates_controller/commands.rb

@@ -1,9 +1,11 @@
+# frozen_string_literal: true
+
 module Telegram
   module Bot
     class UpdatesController
       #  Support for parsing commands
       module Commands
-        CMD_REGEX = %r{\A/([a-z\d_]{,31})(@(\S+))?(\s|$)}i
+        CMD_REGEX = %r{\A/([a-z\d_]{,31})(@(\S+))?(\s|$)}i.freeze
 
         class << self
           # Fetches command from text message. All subsequent words are returned
@@ -34,7 +36,7 @@ module Telegram
         def action_for_message
           cmd, args = Commands.command_from_text(payload['text'], bot_username)
           return unless cmd
-          [[action_for_command(cmd), type: :command, command: cmd], args]
+          [[action_for_command(cmd), {type: :command, command: cmd}], args]
         end
 
         alias_method :action_for_channel_post, :action_for_message

lib/telegram/bot/updates_controller/instrumentation.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Telegram
   module Bot
     class UpdatesController
@@ -23,8 +25,8 @@ module Telegram
         def process_action(*args)
           raw_payload = {
             controller: self.class.name,
-            action:     action_name,
-            update:     update,
+            action: action_name,
+            update: update,
           }
           Instrumentation.instrument(:start_processing, raw_payload.dup)
           Instrumentation.instrument(:process_action, raw_payload) do |payload|
@@ -61,14 +63,14 @@ module Telegram
         #   end
         #
         # :api: plugin
-        def cleanup_view_runtime #:nodoc:
+        def cleanup_view_runtime # :nodoc:
           yield
         end
 
         # Every time after an action is processed, this method is invoked
         # with the payload, so you can add more information.
         # :api: plugin
-        def append_info_to_payload(_payload) #:nodoc:
+        def append_info_to_payload(_payload) # :nodoc:
         end
 
         module ClassMethods
@@ -76,7 +78,7 @@ module Telegram
           # controller process action. This method should return an array
           # with the messages to be added.
           # :api: plugin
-          def log_process_action(_payload) #:nodoc:
+          def log_process_action(_payload) # :nodoc:
             []
           end
         end

lib/telegram/bot/updates_controller/log_subscriber.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'active_support/log_subscriber'
 
 module Telegram
@@ -8,7 +10,7 @@ module Telegram
           info do
             payload = event.payload
             "Processing by #{payload[:controller]}##{payload[:action]}\n" \
-            "  Update: #{payload[:update].to_json}"
+              "  Update: #{payload[:update].to_json}"
           end
         end
 

lib/telegram/bot/updates_controller/message_context.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Telegram
   module Bot
     class UpdatesController
@@ -48,12 +50,12 @@ module Telegram
         # it has higher priority than contextual action.
         def action_for_message
           val = message_context_session.delete(:context)
-          context = val && val.to_s
-          super || context && begin
-            args = payload['text'].try!(:split) || []
+          context = val&.to_s
+          super || (context && begin
+            args = payload['text']&.split || []
             action = action_for_message_context(context)
-            [[action, type: :message_context, context: context], args]
-          end
+            [[action, {type: :message_context, context: context}], args]
+          end)
         end
 
         # Save context for the next request.

lib/telegram/bot/updates_controller/reply_helpers.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Telegram
   module Bot
     class UpdatesController
@@ -59,9 +61,9 @@ module Telegram
         # Edit message from callback query.
         def edit_message(type, params = {})
           params =
-            if message_id = payload['inline_message_id'] # rubocop:disable AssignmentInCondition
+            if message_id = payload['inline_message_id'] # rubocop:disable Lint/AssignmentInCondition
               params.merge(inline_message_id: message_id)
-            elsif message = payload['message'] # rubocop:disable AssignmentInCondition
+            elsif message = payload['message'] # rubocop:disable Lint/AssignmentInCondition
               params.merge(chat_id: message['chat']['id'], message_id: message['message_id'])
             else
               raise 'Can not edit message without `inline_message_id` or `message`'

lib/telegram/bot/updates_controller/rescue.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'active_support/rescuable'
 
 module Telegram
@@ -11,7 +13,7 @@ module Telegram
 
         def process_action(*)
           super
-        rescue Exception => exception # rubocop:disable RescueException
+        rescue Exception => exception # rubocop:disable Lint/RescueException
           rescue_with_handler(exception) || raise
         end
       end

lib/telegram/bot/updates_controller/rspec_helpers.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'telegram/bot/updates_controller/testing'
 require 'telegram/bot/rspec/message_helpers'
 require 'telegram/bot/rspec/callback_query_helpers'

lib/telegram/bot/updates_controller/session.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rack/session/abstract/id'
 require 'active_support/cache'
 
@@ -27,7 +29,8 @@ module Telegram
         protected
 
         def session
-          @_session ||= self.class.build_session(session_key)
+          @_session ||= # rubocop:disable Naming/MemoizedInstanceVariableName
+            self.class.build_session(session_key)
         end
 
         def session_key
@@ -41,7 +44,7 @@ module Telegram
         class SessionHash < Rack::Session::Abstract::SessionHash
           attr_reader :id
 
-          def initialize(store, id)
+          def initialize(store, id) # rubocop:disable Lint/MissingSuper
             @store = store
             @id = id
           end
@@ -65,13 +68,13 @@ module Telegram
 
           def commit
             return unless loaded?
-            data = to_hash.delete_if { |_, v| v.nil? }
+            data = to_hash.compact
             @store.write(id, data)
           end
         end
 
         class NullSessionHash < Session::SessionHash
-          def initialize
+          def initialize # rubocop:disable Lint/MissingSuper
             @data = {}
             @loaded = true
             @exists = true

lib/telegram/bot/updates_controller/testing.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Telegram
   module Bot
     class UpdatesController
@@ -16,7 +18,7 @@ module Telegram
         # everything will be rewriten with #initialize.
         #
         # With `full` set to `true` it'll clear all cached instance variables.
-        def recycle!(full = false)
+        def recycle!(full = false) # rubocop:disable Style/OptionalBooleanParameter
           return unless full
           (instance_variables - IVARS_TO_KEEP).each do |ivar|
             remove_instance_variable(ivar)
@@ -27,7 +29,8 @@ module Telegram
 
         # Stubs session.
         def session
-          @_session ||= Session::NullSessionHash.new
+          @_session ||= # rubocop:disable Naming/MemoizedInstanceVariableName
+            Session::NullSessionHash.new
         end
       end
     end

lib/telegram/bot/updates_controller/translation.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Telegram
   module Bot
     class UpdatesController

lib/telegram/bot/updates_controller/typed_update.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Telegram
   module Bot
     class UpdatesController

lib/telegram/bot/updates_poller.rb

@@ -1,9 +1,11 @@
+# frozen_string_literal: true
+
 module Telegram
   module Bot
     # Supposed to be used in development environments only.
     class UpdatesPoller
       class << self
-        @@instances = {} # rubocop:disable ClassVars
+        @@instances = {} # rubocop:disable Style/ClassVars
 
         def instances
           @@instances
@@ -36,7 +38,7 @@ module Telegram
       end
 
       def log(&block)
-        logger.info(&block) if logger
+        logger&.info(&block)
       end
 
       def start
@@ -56,7 +58,7 @@ module Telegram
       def run
         while running
           updates = fetch_updates
-          process_updates(updates) if updates && updates.any?
+          process_updates(updates) if updates&.any?
         end
       end
 
@@ -82,8 +84,8 @@ module Telegram
             process_update(update)
           end
         end
-      rescue StandardError => e
-        logger.error { ([e.message] + e.backtrace).join("\n") } if logger
+      rescue StandardError => exception
+        logger&.error { ([exception.message] + exception.backtrace).join("\n") }
       end
 
       # Override this method to setup custom error collector.
@@ -102,10 +104,8 @@ module Telegram
       end
 
       if defined?(Rails.application) && Rails.application.respond_to?(:reloader)
-        def reloading_code
-          Rails.application.reloader.wrap do
-            yield
-          end
+        def reloading_code(&block)
+          Rails.application.reloader.wrap(&block)
         end
       else
         def reloading_code

lib/telegram/bot/version.rb

@@ -1,6 +1,8 @@
+# frozen_string_literal: true
+
 module Telegram
   module Bot
-    VERSION = '0.16.1'.freeze
+    VERSION = '0.16.1'
 
     def self.gem_version
       Gem::Version.new VERSION