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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_meta_content(self, metaName):
 """\ Extract a given meta content form document """

        meta = self.parser.css_select(self.article.doc, metaName)
        content = None

        if meta is not None and len(meta) > 0:
            content = self.parser.getAttribute(meta[0], 'content')

        if content:
            return content.strip()

        return ''