To use, just include `Jekyll::LiquidExtensions` as you please:
```ruby
class SayHi < Liquid::Tag
  include Jekyll::LiquidExtensions
  def initialize(tag_name, markup, tokens)
    @markup = markup.strip
  end
  def render(context)
    "hi #{lookup_variable(context, @markup)}"
  end
end
```
Fixes #2071.
						
					
				
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| jekyll | ||
| site_template | ||
| jekyll.rb | ||