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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:
 async def encoder_config(self, command):
 """ Configure 2 pins for FirmataPlus encoder operation. :param command: {"method": "encoder_config", "params": [PIN_A, PIN_B]} :returns: {"method": "encoder_data_reply", "params": [ENCODER_DATA]} """

        pin_a = int(command[0])
        pin_b = int(command[1])
        await self.core.encoder_config(pin_a, pin_b, self.encoder_callback)