ext.rbs

# Devise

extension ApplicationController (Devise)
  def current_user: () -> User
end

class DeviseController < ApplicationController
end

class Devise::SessionsController < DeviseController
end
class Devise::InvitationsController < DeviseController
end
class Devise::ConfirmationsController < DeviseController
end
class Devise::OmniauthCallbacksController < DeviseController
end
class Devise::PasswordsController < DeviseController
end

libs.rbs

# To avoid UnknownTypeNameError

module ActsAsCommentable::Comment end
module ActionController::MimeResponds end
class ActionMailer::Base end
class ActionMailer::MessageDelivery end
module ActionView::Helpers::SanitizeHelper end
module ActionView::Helpers::TagHelper end
class ActiveJob::Base end
class ActiveModel::EachValidator end
class ActiveModel::Validator end
class ActiveSupport::MessageEncryptor end
class Apartment::Elevators::Subdomain end
class Arproxy::Base end
module CanCan::Ability end
module CanCan::ControllerAdditions end
class Devise::Strategies::Authenticatable end
class Devise::Strategies::Base end
module Elasticsearch::Model end
class GraphQL::Analysis::AST::Analyzer end
class GraphQL::Batch::Loader end
class GraphQL::ExecutionError end
class GraphQL::Relay::BaseConnection end
class GraphQL::Schema end
class GraphQL::Schema::Argument end
class GraphQL::Schema::Enum end
class GraphQL::Schema::Field end
class GraphQL::Schema::InputObject end
class GraphQL::Schema::Interface end
class GraphQL::Schema::Object end
class GraphQL::Schema::RelayClassicMutation end
class GraphQL::Schema::RescueMiddleware end
class GraphQL::Schema::Scalar end
class GraphQL::Schema::Union end
class GraphQL::Types::Relay::BaseConnection end
class Devise::Mailer end
module Mato::Concerns::HtmlNodeCheckable end
module MessagePack::CoreExt end
class OpenStruct end
module OrderAsSpecified end
module PaperTrail::VersionConcern end
class Rambulance::ExceptionsApp end
module Singleton end
module TeamSwitchableGlobalId end

rails.rbs

class ActiveRecord::SessionStore::Session < ActiveRecord::Base
end

interface _ActionController_API_and_Base
  include _RbsRailsPathHelpers

  def request: () -> untyped
  def params: () -> untyped
  def session: () -> untyped
  def cookies: () -> untyped
  def flash: () -> untyped
  def render: (*untyped) -> void
  def redirect_to: (*untyped) -> void
end

interface _ActionController_API_and_Base_singletion
  # hooks
  def before_action: (*untyped) -> void
  def around_action: (*untyped) -> void
  def after_action: (*untyped) -> void
  def skip_before_action: (*untyped) -> void
  def skip_around_action: (*untyped) -> void
  def skip_after_action: (*untyped) -> void
  def prepend_before_action: (*untyped) -> void
  def prepend_around_action: (*untyped) -> void
  def prepend_after_action: (*untyped) -> void
  def append_before_action: (*untyped) -> void
  def append_around_action: (*untyped) -> void
  def append_after_action: (*untyped) -> void

  def rescue_from: (*Class, ?with: Symbol | Proc) { (Exception) -> void } -> void
  def layout: (String) -> void
end

class ActionController::Base
  include _ActionController_API_and_Base
  extend _ActionController_API_and_Base_singletion
end

class ActionController::API
  include _ActionController_API_and_Base
  extend _ActionController_API_and_Base_singletion
end

extension ActionController::Base (Devise)
  def current_user: () -> User
end

extension Object (ActiveSupport)
  def blank?: () -> bool
  def present?: () -> bool
  def presence: () -> self
end

extension Integer (ActiveSupport)
  def days: () -> untyped
  def day: () -> untyped
  def year: () -> untyped
  def years: () -> untyped
  def month: () -> untyped
  def months: () -> untyped
  def week: () -> untyped
  def weeks: () -> untyped
  def minute: () -> untyped
  def minutes: () -> untyped
end

extension Time (ActiveSupport)
  def self.zone: () -> untyped
end

module ActiveSupport::Concern
  def included: () { () -> void } -> void
end