Psych::Visitors::ToRuby#allocate_anon_data

# File tmp/rubies/ruby-4.0.0/ext/psych/lib/psych/visitors/to_ruby.rb, line 373
def allocate_anon_data node, members
  klass = class_loader.data.define(*members.keys)
  register(node, klass.allocate)
end