'Use XPATH to Isolate a Child Image

I'm running a Ruby script that isolates and extracts datapoints/nodes from a Wordpress export file. (XML)

I'm having success with basic XPATH for these nodes:

#grab content from source item


title = item.xpath("./title/text()").to_s
  description = item.xpath("./description/text()").to_s
  main_content = item.xpath("./content:encoded/node()").text
  author = item.xpath("./dc:creator/text()").to_s

However, I'm having difficulty extracting the IMAGE filename/url from my XML.

The image url is always contained inside this node: <wp:meta_value>

How can I write an XPATH command to isolate the full url and/or filename of the jpg child of that node?

xmlwordpressxpath


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