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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 view(cls, database, viewname, **options):
 """Execute a CouchDB named view and map the result values back to objects of this mapping. Note that by default, any properties of the document that are not included in the values of the view will be treated as if they were missing from the document. If you want to load the full document for every row, set the ``include_docs`` option to ``True``. """

        return database.view(viewname, wrapper=cls._wrap_row, **options)