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-rw-r--r--activesupport/lib/active_support/core_ext/hash/compact.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/core_ext/hash/compact.rb b/activesupport/lib/active_support/core_ext/hash/compact.rb
index ddccbe7d16..d6364dd9f3 100644
--- a/activesupport/lib/active_support/core_ext/hash/compact.rb
+++ b/activesupport/lib/active_support/core_ext/hash/compact.rb
@@ -1,4 +1,5 @@
# frozen_string_literal: true
+
class Hash
unless Hash.instance_methods(false).include?(:compact)
# Returns a hash with non +nil+ values.