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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(self, entry):
 """ get the value from vault secret backend """

        if self.apiVersion == 1:
            path = self.secretsmount + '/' + entry
        else:
            path = self.secretsmount + '/data/' + entry

        # note that the HTTP path contains v1 for both versions of the key-value
        # secret engine. Different versions of the key-value engine are
        # effectively separate secret engines in vault, with the same base HTTP
        # API, but with different paths within it.
        proj = yield self._http.get('/v1/{0}'.format(path))
        code = yield proj.code
        if code != 200:
            raise KeyError("The key %s does not exist in Vault provider: request"
                           " return code:%d." % (entry, code))
        json = yield proj.json()
        if self.apiVersion == 1:
            ret = json.get('data', {}).get('value')
        else:
            ret = json.get('data', {}).get('data', {}).get('value')
        return ret