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-rw-r--r--activerecord/lib/active_record/attribute_methods.rb5
1 files changed, 2 insertions, 3 deletions
diff --git a/activerecord/lib/active_record/attribute_methods.rb b/activerecord/lib/active_record/attribute_methods.rb
index 83c61fad19..e4ca6c8408 100644
--- a/activerecord/lib/active_record/attribute_methods.rb
+++ b/activerecord/lib/active_record/attribute_methods.rb
@@ -1,7 +1,6 @@
-require "active_support/core_ext/enumerable"
-require "active_support/core_ext/string/filters"
+# frozen_string_literal: true
+
require "mutex_m"
-require "concurrent/map"
module ActiveRecord
# = Active Record Attribute Methods