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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 delete(self):
 """ Removes the document from the remote database and clears the content of the locally cached Document object with the exception of the ``_id`` field. In order to successfully remove a document from the remote database, a ``_rev`` value must exist in the locally cached Document object. """

        if not self.get("_rev"):
            raise CloudantDocumentException(103)

        del_resp = self.r_session.delete(
            self.document_url,
            params={"rev": self["_rev"]},
        )
        del_resp.raise_for_status()
        _id = self['_id']
        self.clear()
        self['_id'] = _id