method 
 append_if_string=
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append_if_string=(value) public  Hide source   
 # File actionpack/lib/action_view/template/handlers/erb.rb, line 19 def append_if_string=(value) if value.is_a?(String) && !value.is_a?(NonConcattingString) ActiveSupport::Deprecation.warn("<% %> style block helpers are deprecated. Please use <%= %>", caller) self << value end end

 
 