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2purport
1: to have the often specious appearance of being, intending, or claiming (something implied or inferred) <a book that purports to be an objective analysis>; also : claim <foreign novels which he purports to have translated — Mary McCarthy>
[M-W's Col. Dic.]

The underlined part is not being used as an example and neither does it add any additional meaning. So what is the purpose of using it, after all?
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It is allowing the reader of the dictionary to insert whatever it is that is implied or inferred - in the example it is "an objective analysis".
Comments  
Thank you, Feebs.