# File lib/aws/core/xml_grammar.rb, line 367
        def eval_customization_context name, initial = nil, &block
          current_name = @current_name
          current = @current
          parent = @parent
          begin
            @current_name = name
            @parent = @current
            initial ||= customizations_for(name)
            @current = initial
            yield if block_given?
          ensure
            @current_name = current_name
            @current = current
            @parent = parent
          end
  
          # will be modified to include the customizations defined in
          # the block
          initial
        end