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U:RDoc::AnyMethod[iI"add_observer:EFI" Observable#add_observer;TF: publico:RDoc::Markup::Document: @parts[o: RDoc::Markup::Paragraph; [I"KAdd +observer+ as an observer on this object. so that it will receive ;TI"notifications.;To: RDoc::Markup::BlankLine o:RDoc::Markup::List: @type: NOTE: @items[o:RDoc::Markup::ListItem: @label[I"+observer+;T; [o; ; [I"1the object that will be notified of changes.;To;;[I" +func+;T; [o; ; [I"GSymbol naming the method that will be called when this Observable ;TI"has changes.;T@o; ; [ I"FThis method must return true for +observer.respond_to?+ and will ;TI"Creceive <tt>*arg</tt> when #notify_observers is called, where ;TI"D<tt>*arg</tt> is the value passed to #notify_observers by this ;TI"Observable;T: @fileI"lib/observer.rb;T:0@omit_headings_from_table_of_contents_below000[ I" (observer, func=:update);T@'FI"Observable;FcRDoc::NormalModule00