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instance method
Psych::Visitors::RestrictedYAMLTree#visit_Symbol
visit_Symbol(sym)
ext/psych/lib/psych/visitors/yaml_tree.rb
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# File tmp/rubies/ruby-3.1.3/ext/psych/lib/psych/visitors/yaml_tree.rb, line 578
def visit_Symbol sym
unless @permitted_symbols[sym]
raise DisallowedClass.new('dump', "Symbol(#{sym.inspect})")
end
super
end
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