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instance method
Psych::TreeBuilder#alias
alias(anchor)
ext/psych/lib/psych/tree_builder.rb
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# File tmp/rubies/ruby-4.1.0-preview1/ext/psych/lib/psych/tree_builder.rb, line 103
def alias anchor
a = Nodes::Alias.new(anchor)
set_location(a)
@last.children << a
a
end
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