add activesupport gem

Gemfile

@@ -1,6 +1,7 @@
 source "https://rubygems.org"
 
 gem 'rsmp'
+gem 'activesupport'
 
 group :development do
   gem 'rspec'

Gemfile.lock

@@ -1,24 +1,44 @@
 GEM
   remote: https://rubygems.org/
   specs:
+    activesupport (8.0.0.1)
+      base64
+      benchmark (>= 0.3)
+      bigdecimal
+      concurrent-ruby (~> 1.0, >= 1.3.1)
+      connection_pool (>= 2.2.5)
+      drb
+      i18n (>= 1.6, < 2)
+      logger (>= 1.4.2)
+      minitest (>= 5.1)
+      securerandom (>= 0.3)
+      tzinfo (~> 2.0, >= 2.0.5)
+      uri (>= 0.13.1)
     async (2.21.1)
       console (~> 1.29)
       fiber-annotation
       io-event (~> 1.6, >= 1.6.5)
     async-io (1.43.2)
       async
+    base64 (0.2.0)
+    benchmark (0.4.0)
     bigdecimal (3.1.8)
     colorize (1.1.0)
+    concurrent-ruby (1.3.4)
+    connection_pool (2.4.1)
     console (1.29.2)
       fiber-annotation
       fiber-local (~> 1.1)
       json
     diff-lcs (1.5.1)
+    drb (2.2.1)
     fiber-annotation (0.2.0)
     fiber-local (1.1.0)
       fiber-storage
     fiber-storage (1.0.0)
     hana (1.3.7)
+    i18n (1.14.6)
+      concurrent-ruby (~> 1.0)
     io-event (1.7.4)
     json (2.9.0)
     json_schemer (2.3.0)
@@ -27,6 +47,7 @@ GEM
       regexp_parser (~> 2.0)
       simpleidn (~> 0.2)
     logger (1.6.2)
+    minitest (5.25.4)
     ostruct (0.6.1)
     rake (13.2.1)
     regexp_parser (2.9.3)
@@ -53,8 +74,12 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.13.0)
     rspec-support (3.13.1)
+    securerandom (0.4.0)
     simpleidn (0.2.3)
     thor (1.3.2)
+    tzinfo (2.0.6)
+      concurrent-ruby (~> 1.0)
+    uri (1.0.2)
     yard (0.9.37)
 
 PLATFORMS
@@ -68,6 +93,7 @@ PLATFORMS
   x86_64-linux
 
 DEPENDENCIES
+  activesupport
   rake
   rsmp
   rspec