async def get_relay_fee(self) -> int:
        """Returns the min relay feerate in sat/kbyte."""
        # do request
        res = await self.session.send_request('blockchain.relayfee')
        # check response
        assert_non_negative_int_or_float(res)
        relayfee = int(res * bitcoin.COIN)
        relayfee = max(0, relayfee)
        return relayfee
Returns the min relay feerate in sat/kbyte.
electrum/interface.py